Home / 2,359.13-3,540.11-1,318.68

Finding the Fourth Proportional to 2,359.13, 3,540.11 and 1,318.68

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Solution

The fourth proportional to 2,359.13, 3,540.11 and 1,318.68 is: 1,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,359.13 : 3,540.11 = 1,318.68 : x
  2. Step 2: Convert to fraction form
    2,359.13/3,540.11 = 1,318.68/x
  3. Step 3: Cross multiply
    2,359.13x = 3,540.11 × 1,318.68
  4. Step 4: Simplify right side
    2,359.13x = 4,668,265.66
  5. Step 5: Solve for x
    x = 4,668,265.66/2,359.13
  6. Step 6: Final answer
    x = 1,978.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.