Home / 2,487.05-3,432.15-1,368.04

Finding the Fourth Proportional to 2,487.05, 3,432.15 and 1,368.04

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Solution

The fourth proportional to 2,487.05, 3,432.15 and 1,368.04 is: 1,887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.05 : 3,432.15 = 1,368.04 : x
  2. Step 2: Convert to fraction form
    2,487.05/3,432.15 = 1,368.04/x
  3. Step 3: Cross multiply
    2,487.05x = 3,432.15 × 1,368.04
  4. Step 4: Simplify right side
    2,487.05x = 4,695,312.49
  5. Step 5: Solve for x
    x = 4,695,312.49/2,487.05
  6. Step 6: Final answer
    x = 1,887.90

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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.