Home / 5,177.28-7,146.72-3,081

Finding the Fourth Proportional to 5,177.28, 7,146.72 and 3,081

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Solution

The fourth proportional to 5,177.28, 7,146.72 and 3,081 is: 4,253.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.28 : 7,146.72 = 3,081 : x
  2. Step 2: Convert to fraction form
    5,177.28/7,146.72 = 3,081/x
  3. Step 3: Cross multiply
    5,177.28x = 7,146.72 × 3,081
  4. Step 4: Simplify right side
    5,177.28x = 22,019,044.32
  5. Step 5: Solve for x
    x = 22,019,044.32/5,177.28
  6. Step 6: Final answer
    x = 4,253.01

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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.