Home / 5,076.48-7,006.56-2,981.28

Finding the Fourth Proportional to 5,076.48, 7,006.56 and 2,981.28

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Solution

The fourth proportional to 5,076.48, 7,006.56 and 2,981.28 is: 4,114.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.48 : 7,006.56 = 2,981.28 : x
  2. Step 2: Convert to fraction form
    5,076.48/7,006.56 = 2,981.28/x
  3. Step 3: Cross multiply
    5,076.48x = 7,006.56 × 2,981.28
  4. Step 4: Simplify right side
    5,076.48x = 20,888,517.20
  5. Step 5: Solve for x
    x = 20,888,517.20/5,076.48
  6. Step 6: Final answer
    x = 4,114.76

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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.