Home / 2,318.71-3,199.68-1,374.59

Finding the Fourth Proportional to 2,318.71, 3,199.68 and 1,374.59

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Solution

The fourth proportional to 2,318.71, 3,199.68 and 1,374.59 is: 1,896.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.71 : 3,199.68 = 1,374.59 : x
  2. Step 2: Convert to fraction form
    2,318.71/3,199.68 = 1,374.59/x
  3. Step 3: Cross multiply
    2,318.71x = 3,199.68 × 1,374.59
  4. Step 4: Simplify right side
    2,318.71x = 4,398,234.27
  5. Step 5: Solve for x
    x = 4,398,234.27/2,318.71
  6. Step 6: Final answer
    x = 1,896.85

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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.