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Finding the Fourth Proportional to 938.04, 1,294.36 and 545.08

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Solution

The fourth proportional to 938.04, 1,294.36 and 545.08 is: 752.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    938.04 : 1,294.36 = 545.08 : x
  2. Step 2: Convert to fraction form
    938.04/1,294.36 = 545.08/x
  3. Step 3: Cross multiply
    938.04x = 1,294.36 × 545.08
  4. Step 4: Simplify right side
    938.04x = 705,529.75
  5. Step 5: Solve for x
    x = 705,529.75/938.04
  6. Step 6: Final answer
    x = 752.13

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Double scale
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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.