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Finding the Fourth Proportional to 938.03, 1,294.28 and 544.85

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Solution

The fourth proportional to 938.03, 1,294.28 and 544.85 is: 751.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    938.03 : 1,294.28 = 544.85 : x
  2. Step 2: Convert to fraction form
    938.03/1,294.28 = 544.85/x
  3. Step 3: Cross multiply
    938.03x = 1,294.28 × 544.85
  4. Step 4: Simplify right side
    938.03x = 705,183.35
  5. Step 5: Solve for x
    x = 705,183.35/938.03
  6. Step 6: Final answer
    x = 751.77

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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.