Home / 7,133.18-9,844.24-3,989.38

Finding the Fourth Proportional to 7,133.18, 9,844.24 and 3,989.38

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Solution

The fourth proportional to 7,133.18, 9,844.24 and 3,989.38 is: 5,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,133.18 : 9,844.24 = 3,989.38 : x
  2. Step 2: Convert to fraction form
    7,133.18/9,844.24 = 3,989.38/x
  3. Step 3: Cross multiply
    7,133.18x = 9,844.24 × 3,989.38
  4. Step 4: Simplify right side
    7,133.18x = 39,272,414.17
  5. Step 5: Solve for x
    x = 39,272,414.17/7,133.18
  6. Step 6: Final answer
    x = 5,505.60

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Half scale
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Double scale
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Similar ratio
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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.