Home / 3,177.97-4,385.77-1,761.63

Finding the Fourth Proportional to 3,177.97, 4,385.77 and 1,761.63

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Solution

The fourth proportional to 3,177.97, 4,385.77 and 1,761.63 is: 2,431.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.97 : 4,385.77 = 1,761.63 : x
  2. Step 2: Convert to fraction form
    3,177.97/4,385.77 = 1,761.63/x
  3. Step 3: Cross multiply
    3,177.97x = 4,385.77 × 1,761.63
  4. Step 4: Simplify right side
    3,177.97x = 7,726,082.08
  5. Step 5: Solve for x
    x = 7,726,082.08/3,177.97
  6. Step 6: Final answer
    x = 2,431.14

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1.5x scale

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.