Home / 2,487.40-3,432.56-1,353.04

Finding the Fourth Proportional to 2,487.40, 3,432.56 and 1,353.04

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Solution

The fourth proportional to 2,487.40, 3,432.56 and 1,353.04 is: 1,867.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.40 : 3,432.56 = 1,353.04 : x
  2. Step 2: Convert to fraction form
    2,487.40/3,432.56 = 1,353.04/x
  3. Step 3: Cross multiply
    2,487.40x = 3,432.56 × 1,353.04
  4. Step 4: Simplify right side
    2,487.40x = 4,644,390.98
  5. Step 5: Solve for x
    x = 4,644,390.98/2,487.40
  6. Step 6: Final answer
    x = 1,867.17

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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.