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Finding the Fourth Proportional to 3,225.52, 4,839.08 and 917

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Solution

The fourth proportional to 3,225.52, 4,839.08 and 917 is: 1,375.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,225.52 : 4,839.08 = 917 : x
  2. Step 2: Convert to fraction form
    3,225.52/4,839.08 = 917/x
  3. Step 3: Cross multiply
    3,225.52x = 4,839.08 × 917
  4. Step 4: Simplify right side
    3,225.52x = 4,437,436.36
  5. Step 5: Solve for x
    x = 4,437,436.36/3,225.52
  6. Step 6: Final answer
    x = 1,375.73

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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.