Home / 3,115.14-4,294.56-2,229.36

Finding the Fourth Proportional to 3,115.14, 4,294.56 and 2,229.36

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Solution

The fourth proportional to 3,115.14, 4,294.56 and 2,229.36 is: 3,073.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.14 : 4,294.56 = 2,229.36 : x
  2. Step 2: Convert to fraction form
    3,115.14/4,294.56 = 2,229.36/x
  3. Step 3: Cross multiply
    3,115.14x = 4,294.56 × 2,229.36
  4. Step 4: Simplify right side
    3,115.14x = 9,574,120.28
  5. Step 5: Solve for x
    x = 9,574,120.28/3,115.14
  6. Step 6: Final answer
    x = 3,073.42

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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.