Home / 3,158.88-4,359.36-1,761.66

Finding the Fourth Proportional to 3,158.88, 4,359.36 and 1,761.66

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Solution

The fourth proportional to 3,158.88, 4,359.36 and 1,761.66 is: 2,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.88 : 4,359.36 = 1,761.66 : x
  2. Step 2: Convert to fraction form
    3,158.88/4,359.36 = 1,761.66/x
  3. Step 3: Cross multiply
    3,158.88x = 4,359.36 × 1,761.66
  4. Step 4: Simplify right side
    3,158.88x = 7,679,710.14
  5. Step 5: Solve for x
    x = 7,679,710.14/3,158.88
  6. Step 6: Final answer
    x = 2,431.15

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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.