Home / 3,159.06-4,359.51-1,761.90

Finding the Fourth Proportional to 3,159.06, 4,359.51 and 1,761.90

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Solution

The fourth proportional to 3,159.06, 4,359.51 and 1,761.90 is: 2,431.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.06 : 4,359.51 = 1,761.90 : x
  2. Step 2: Convert to fraction form
    3,159.06/4,359.51 = 1,761.90/x
  3. Step 3: Cross multiply
    3,159.06x = 4,359.51 × 1,761.90
  4. Step 4: Simplify right side
    3,159.06x = 7,681,020.67
  5. Step 5: Solve for x
    x = 7,681,020.67/3,159.06
  6. Step 6: Final answer
    x = 2,431.43

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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.