Home / 3,727.20-5,587.56-2,431.20

Finding the Fourth Proportional to 3,727.20, 5,587.56 and 2,431.20

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Solution

The fourth proportional to 3,727.20, 5,587.56 and 2,431.20 is: 3,644.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.20 : 5,587.56 = 2,431.20 : x
  2. Step 2: Convert to fraction form
    3,727.20/5,587.56 = 2,431.20/x
  3. Step 3: Cross multiply
    3,727.20x = 5,587.56 × 2,431.20
  4. Step 4: Simplify right side
    3,727.20x = 13,584,475.87
  5. Step 5: Solve for x
    x = 13,584,475.87/3,727.20
  6. Step 6: Final answer
    x = 3,644.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.