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Finding the Fourth Proportional to 5,144.57, 7,716.85 and 1,248.95

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Solution

The fourth proportional to 5,144.57, 7,716.85 and 1,248.95 is: 1,873.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.57 : 7,716.85 = 1,248.95 : x
  2. Step 2: Convert to fraction form
    5,144.57/7,716.85 = 1,248.95/x
  3. Step 3: Cross multiply
    5,144.57x = 7,716.85 × 1,248.95
  4. Step 4: Simplify right side
    5,144.57x = 9,637,918.10
  5. Step 5: Solve for x
    x = 9,637,918.10/5,144.57
  6. Step 6: Final answer
    x = 1,873.42

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1.5x scale

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.