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Finding the Fourth Proportional to 1,527.62, 2,294.49 and 912.53

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Solution

The fourth proportional to 1,527.62, 2,294.49 and 912.53 is: 1,370.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,527.62 : 2,294.49 = 912.53 : x
  2. Step 2: Convert to fraction form
    1,527.62/2,294.49 = 912.53/x
  3. Step 3: Cross multiply
    1,527.62x = 2,294.49 × 912.53
  4. Step 4: Simplify right side
    1,527.62x = 2,093,790.96
  5. Step 5: Solve for x
    x = 2,093,790.96/1,527.62
  6. Step 6: Final answer
    x = 1,370.62

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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.