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Finding the Fourth Proportional to 1,474.34, 2,034.59 and 914.81

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Solution

The fourth proportional to 1,474.34, 2,034.59 and 914.81 is: 1,262.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.34 : 2,034.59 = 914.81 : x
  2. Step 2: Convert to fraction form
    1,474.34/2,034.59 = 914.81/x
  3. Step 3: Cross multiply
    1,474.34x = 2,034.59 × 914.81
  4. Step 4: Simplify right side
    1,474.34x = 1,861,248.53
  5. Step 5: Solve for x
    x = 1,861,248.53/1,474.34
  6. Step 6: Final answer
    x = 1,262.43

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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.