Home / 7,921.28-11,881.92-2,726.76

Finding the Fourth Proportional to 7,921.28, 11,881.92 and 2,726.76

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Solution

The fourth proportional to 7,921.28, 11,881.92 and 2,726.76 is: 4,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.28 : 11,881.92 = 2,726.76 : x
  2. Step 2: Convert to fraction form
    7,921.28/11,881.92 = 2,726.76/x
  3. Step 3: Cross multiply
    7,921.28x = 11,881.92 × 2,726.76
  4. Step 4: Simplify right side
    7,921.28x = 32,399,144.18
  5. Step 5: Solve for x
    x = 32,399,144.18/7,921.28
  6. Step 6: Final answer
    x = 4,090.14

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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.