Home / 3,159.13-4,359.59-1,761.88

Finding the Fourth Proportional to 3,159.13, 4,359.59 and 1,761.88

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Solution

The fourth proportional to 3,159.13, 4,359.59 and 1,761.88 is: 2,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.13 : 4,359.59 = 1,761.88 : x
  2. Step 2: Convert to fraction form
    3,159.13/4,359.59 = 1,761.88/x
  3. Step 3: Cross multiply
    3,159.13x = 4,359.59 × 1,761.88
  4. Step 4: Simplify right side
    3,159.13x = 7,681,074.43
  5. Step 5: Solve for x
    x = 7,681,074.43/3,159.13
  6. Step 6: Final answer
    x = 2,431.39

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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.