Home / 5,077.28-7,007.56-2,981.52

Finding the Fourth Proportional to 5,077.28, 7,007.56 and 2,981.52

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Solution

The fourth proportional to 5,077.28, 7,007.56 and 2,981.52 is: 4,115.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.28 : 7,007.56 = 2,981.52 : x
  2. Step 2: Convert to fraction form
    5,077.28/7,007.56 = 2,981.52/x
  3. Step 3: Cross multiply
    5,077.28x = 7,007.56 × 2,981.52
  4. Step 4: Simplify right side
    5,077.28x = 20,893,180.29
  5. Step 5: Solve for x
    x = 20,893,180.29/5,077.28
  6. Step 6: Final answer
    x = 4,115.03

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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.