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Finding the Fourth Proportional to 5,449.95, 8,173.98 and 1,553.31

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Solution

The fourth proportional to 5,449.95, 8,173.98 and 1,553.31 is: 2,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.95 : 8,173.98 = 1,553.31 : x
  2. Step 2: Convert to fraction form
    5,449.95/8,173.98 = 1,553.31/x
  3. Step 3: Cross multiply
    5,449.95x = 8,173.98 × 1,553.31
  4. Step 4: Simplify right side
    5,449.95x = 12,696,724.87
  5. Step 5: Solve for x
    x = 12,696,724.87/5,449.95
  6. Step 6: Final answer
    x = 2,329.70

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Similar ratio
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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.