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Finding the Fourth Proportional to 1,084.96, 1,496.25 and 725.42

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Solution

The fourth proportional to 1,084.96, 1,496.25 and 725.42 is: 1,000.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084.96 : 1,496.25 = 725.42 : x
  2. Step 2: Convert to fraction form
    1,084.96/1,496.25 = 725.42/x
  3. Step 3: Cross multiply
    1,084.96x = 1,496.25 × 725.42
  4. Step 4: Simplify right side
    1,084.96x = 1,085,409.68
  5. Step 5: Solve for x
    x = 1,085,409.68/1,084.96
  6. Step 6: Final answer
    x = 1,000.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.