Home / 3,158.43-4,358.62-1,761.18

Finding the Fourth Proportional to 3,158.43, 4,358.62 and 1,761.18

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Solution

The fourth proportional to 3,158.43, 4,358.62 and 1,761.18 is: 2,430.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.43 : 4,358.62 = 1,761.18 : x
  2. Step 2: Convert to fraction form
    3,158.43/4,358.62 = 1,761.18/x
  3. Step 3: Cross multiply
    3,158.43x = 4,358.62 × 1,761.18
  4. Step 4: Simplify right side
    3,158.43x = 7,676,314.37
  5. Step 5: Solve for x
    x = 7,676,314.37/3,158.43
  6. Step 6: Final answer
    x = 2,430.42

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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.