Home / 5,076.74-7,008.18-2,981

Finding the Fourth Proportional to 5,076.74, 7,008.18 and 2,981

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Solution

The fourth proportional to 5,076.74, 7,008.18 and 2,981 is: 4,115.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.74 : 7,008.18 = 2,981 : x
  2. Step 2: Convert to fraction form
    5,076.74/7,008.18 = 2,981/x
  3. Step 3: Cross multiply
    5,076.74x = 7,008.18 × 2,981
  4. Step 4: Simplify right side
    5,076.74x = 20,891,384.58
  5. Step 5: Solve for x
    x = 20,891,384.58/5,076.74
  6. Step 6: Final answer
    x = 4,115.12

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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.