Home / 4,090.75-5,645.28-2,227.75

Finding the Fourth Proportional to 4,090.75, 5,645.28 and 2,227.75

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Solution

The fourth proportional to 4,090.75, 5,645.28 and 2,227.75 is: 3,074.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.75 : 5,645.28 = 2,227.75 : x
  2. Step 2: Convert to fraction form
    4,090.75/5,645.28 = 2,227.75/x
  3. Step 3: Cross multiply
    4,090.75x = 5,645.28 × 2,227.75
  4. Step 4: Simplify right side
    4,090.75x = 12,576,272.52
  5. Step 5: Solve for x
    x = 12,576,272.52/4,090.75
  6. Step 6: Final answer
    x = 3,074.32

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Find fourth proportional to 2,045.38, 2,822.64 and 1,113.88
Half scale
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Double scale
Find fourth proportional to 4,091.75, 5,646.66 and 2,228.75
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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.