Home / 5,921.36-8,170.28-3,798.80

Finding the Fourth Proportional to 5,921.36, 8,170.28 and 3,798.80

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Solution

The fourth proportional to 5,921.36, 8,170.28 and 3,798.80 is: 5,241.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.36 : 8,170.28 = 3,798.80 : x
  2. Step 2: Convert to fraction form
    5,921.36/8,170.28 = 3,798.80/x
  3. Step 3: Cross multiply
    5,921.36x = 8,170.28 × 3,798.80
  4. Step 4: Simplify right side
    5,921.36x = 31,037,259.66
  5. Step 5: Solve for x
    x = 31,037,259.66/5,921.36
  6. Step 6: Final answer
    x = 5,241.58

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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.