Home / 2,318.15-3,472.61-1,438.56

Finding the Fourth Proportional to 2,318.15, 3,472.61 and 1,438.56

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Solution

The fourth proportional to 2,318.15, 3,472.61 and 1,438.56 is: 2,154.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.15 : 3,472.61 = 1,438.56 : x
  2. Step 2: Convert to fraction form
    2,318.15/3,472.61 = 1,438.56/x
  3. Step 3: Cross multiply
    2,318.15x = 3,472.61 × 1,438.56
  4. Step 4: Simplify right side
    2,318.15x = 4,995,550.65
  5. Step 5: Solve for x
    x = 4,995,550.65/2,318.15
  6. Step 6: Final answer
    x = 2,154.97

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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.