Home / 3,901.88-5,851.08-1,127.89

Finding the Fourth Proportional to 3,901.88, 5,851.08 and 1,127.89

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Solution

The fourth proportional to 3,901.88, 5,851.08 and 1,127.89 is: 1,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.88 : 5,851.08 = 1,127.89 : x
  2. Step 2: Convert to fraction form
    3,901.88/5,851.08 = 1,127.89/x
  3. Step 3: Cross multiply
    3,901.88x = 5,851.08 × 1,127.89
  4. Step 4: Simplify right side
    3,901.88x = 6,599,355.76
  5. Step 5: Solve for x
    x = 6,599,355.76/3,901.88
  6. Step 6: Final answer
    x = 1,691.33

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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.