Home / 3,727.62-5,142.15-2,331.18

Finding the Fourth Proportional to 3,727.62, 5,142.15 and 2,331.18

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Solution

The fourth proportional to 3,727.62, 5,142.15 and 2,331.18 is: 3,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.62 : 5,142.15 = 2,331.18 : x
  2. Step 2: Convert to fraction form
    3,727.62/5,142.15 = 2,331.18/x
  3. Step 3: Cross multiply
    3,727.62x = 5,142.15 × 2,331.18
  4. Step 4: Simplify right side
    3,727.62x = 11,987,277.24
  5. Step 5: Solve for x
    x = 11,987,277.24/3,727.62
  6. Step 6: Final answer
    x = 3,215.80

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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.