Home / 2,487.35-3,731.45-1,025.70

Finding the Fourth Proportional to 2,487.35, 3,731.45 and 1,025.70

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Solution

The fourth proportional to 2,487.35, 3,731.45 and 1,025.70 is: 1,538.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.35 : 3,731.45 = 1,025.70 : x
  2. Step 2: Convert to fraction form
    2,487.35/3,731.45 = 1,025.70/x
  3. Step 3: Cross multiply
    2,487.35x = 3,731.45 × 1,025.70
  4. Step 4: Simplify right side
    2,487.35x = 3,827,343.14
  5. Step 5: Solve for x
    x = 3,827,343.14/2,487.35
  6. Step 6: Final answer
    x = 1,538.73

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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.