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Finding the Fourth Proportional to 1,849.86, 2,774.19 and 616.94

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Solution

The fourth proportional to 1,849.86, 2,774.19 and 616.94 is: 925.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,849.86 : 2,774.19 = 616.94 : x
  2. Step 2: Convert to fraction form
    1,849.86/2,774.19 = 616.94/x
  3. Step 3: Cross multiply
    1,849.86x = 2,774.19 × 616.94
  4. Step 4: Simplify right side
    1,849.86x = 1,711,508.78
  5. Step 5: Solve for x
    x = 1,711,508.78/1,849.86
  6. Step 6: Final answer
    x = 925.21

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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.