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Finding the Fourth Proportional to 952.92, 1,314.36 and 638.04

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Solution

The fourth proportional to 952.92, 1,314.36 and 638.04 is: 880.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.92 : 1,314.36 = 638.04 : x
  2. Step 2: Convert to fraction form
    952.92/1,314.36 = 638.04/x
  3. Step 3: Cross multiply
    952.92x = 1,314.36 × 638.04
  4. Step 4: Simplify right side
    952.92x = 838,614.25
  5. Step 5: Solve for x
    x = 838,614.25/952.92
  6. Step 6: Final answer
    x = 880.05

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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.