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Finding the Fourth Proportional to 1,847.91, 2,770.92 and 614.99

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Solution

The fourth proportional to 1,847.91, 2,770.92 and 614.99 is: 922.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,847.91 : 2,770.92 = 614.99 : x
  2. Step 2: Convert to fraction form
    1,847.91/2,770.92 = 614.99/x
  3. Step 3: Cross multiply
    1,847.91x = 2,770.92 × 614.99
  4. Step 4: Simplify right side
    1,847.91x = 1,704,071.16
  5. Step 5: Solve for x
    x = 1,704,071.16/1,847.91
  6. Step 6: Final answer
    x = 922.16

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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.