Home / 3,901.70-5,851.68-1,127.76

Finding the Fourth Proportional to 3,901.70, 5,851.68 and 1,127.76

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Solution

The fourth proportional to 3,901.70, 5,851.68 and 1,127.76 is: 1,691.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.70 : 5,851.68 = 1,127.76 : x
  2. Step 2: Convert to fraction form
    3,901.70/5,851.68 = 1,127.76/x
  3. Step 3: Cross multiply
    3,901.70x = 5,851.68 × 1,127.76
  4. Step 4: Simplify right side
    3,901.70x = 6,599,264.46
  5. Step 5: Solve for x
    x = 6,599,264.46/3,901.70
  6. Step 6: Final answer
    x = 1,691.38

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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.