Home / 1,474.11-2,211.17-742.68

Finding the Fourth Proportional to 1,474.11, 2,211.17 and 742.68

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Solution

The fourth proportional to 1,474.11, 2,211.17 and 742.68 is: 1,114.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.11 : 2,211.17 = 742.68 : x
  2. Step 2: Convert to fraction form
    1,474.11/2,211.17 = 742.68/x
  3. Step 3: Cross multiply
    1,474.11x = 2,211.17 × 742.68
  4. Step 4: Simplify right side
    1,474.11x = 1,642,188.02
  5. Step 5: Solve for x
    x = 1,642,188.02/1,474.11
  6. Step 6: Final answer
    x = 1,114.02

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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.