Home / 3,901.83-5,851.99-1,127.80

Finding the Fourth Proportional to 3,901.83, 5,851.99 and 1,127.80

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Solution

The fourth proportional to 3,901.83, 5,851.99 and 1,127.80 is: 1,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.83 : 5,851.99 = 1,127.80 : x
  2. Step 2: Convert to fraction form
    3,901.83/5,851.99 = 1,127.80/x
  3. Step 3: Cross multiply
    3,901.83x = 5,851.99 × 1,127.80
  4. Step 4: Simplify right side
    3,901.83x = 6,599,874.32
  5. Step 5: Solve for x
    x = 6,599,874.32/3,901.83
  6. Step 6: Final answer
    x = 1,691.48

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1.5x scale

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.