Home / 3,845.88-5,305.12-2,273.68

Finding the Fourth Proportional to 3,845.88, 5,305.12 and 2,273.68

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Solution

The fourth proportional to 3,845.88, 5,305.12 and 2,273.68 is: 3,136.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.88 : 5,305.12 = 2,273.68 : x
  2. Step 2: Convert to fraction form
    3,845.88/5,305.12 = 2,273.68/x
  3. Step 3: Cross multiply
    3,845.88x = 5,305.12 × 2,273.68
  4. Step 4: Simplify right side
    3,845.88x = 12,062,145.24
  5. Step 5: Solve for x
    x = 12,062,145.24/3,845.88
  6. Step 6: Final answer
    x = 3,136.38

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Find fourth proportional to 1,922.94, 2,652.56 and 1,136.84
Half scale
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Double scale
Find fourth proportional to 3,846.88, 5,306.50 and 2,274.68
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.