Home / 2,318.23-3,480.39-1,382.89

Finding the Fourth Proportional to 2,318.23, 3,480.39 and 1,382.89

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Solution

The fourth proportional to 2,318.23, 3,480.39 and 1,382.89 is: 2,076.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.23 : 3,480.39 = 1,382.89 : x
  2. Step 2: Convert to fraction form
    2,318.23/3,480.39 = 1,382.89/x
  3. Step 3: Cross multiply
    2,318.23x = 3,480.39 × 1,382.89
  4. Step 4: Simplify right side
    2,318.23x = 4,812,996.53
  5. Step 5: Solve for x
    x = 4,812,996.53/2,318.23
  6. Step 6: Final answer
    x = 2,076.15

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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.