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Finding the Fourth Proportional to 5,294.70, 7,305.39 and 4,119.12

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Solution

The fourth proportional to 5,294.70, 7,305.39 and 4,119.12 is: 5,683.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,294.70 : 7,305.39 = 4,119.12 : x
  2. Step 2: Convert to fraction form
    5,294.70/7,305.39 = 4,119.12/x
  3. Step 3: Cross multiply
    5,294.70x = 7,305.39 × 4,119.12
  4. Step 4: Simplify right side
    5,294.70x = 30,091,778.06
  5. Step 5: Solve for x
    x = 30,091,778.06/5,294.70
  6. Step 6: Final answer
    x = 5,683.38

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Half scale
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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.