Home / 7,427.43-11,142.29-2,428.23

Finding the Fourth Proportional to 7,427.43, 11,142.29 and 2,428.23

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Solution

The fourth proportional to 7,427.43, 11,142.29 and 2,428.23 is: 3,642.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.43 : 11,142.29 = 2,428.23 : x
  2. Step 2: Convert to fraction form
    7,427.43/11,142.29 = 2,428.23/x
  3. Step 3: Cross multiply
    7,427.43x = 11,142.29 × 2,428.23
  4. Step 4: Simplify right side
    7,427.43x = 27,056,030.71
  5. Step 5: Solve for x
    x = 27,056,030.71/7,427.43
  6. Step 6: Final answer
    x = 3,642.72

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.