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Finding the Fourth Proportional to 1,503.60, 2,249.85 and 910.97

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Solution

The fourth proportional to 1,503.60, 2,249.85 and 910.97 is: 1,363.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.60 : 2,249.85 = 910.97 : x
  2. Step 2: Convert to fraction form
    1,503.60/2,249.85 = 910.97/x
  3. Step 3: Cross multiply
    1,503.60x = 2,249.85 × 910.97
  4. Step 4: Simplify right side
    1,503.60x = 2,049,534.61
  5. Step 5: Solve for x
    x = 2,049,534.61/1,503.60
  6. Step 6: Final answer
    x = 1,363.08

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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.