Home / 3,979.06-5,491.19-2,487.04

Finding the Fourth Proportional to 3,979.06, 5,491.19 and 2,487.04

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Solution

The fourth proportional to 3,979.06, 5,491.19 and 2,487.04 is: 3,432.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.06 : 5,491.19 = 2,487.04 : x
  2. Step 2: Convert to fraction form
    3,979.06/5,491.19 = 2,487.04/x
  3. Step 3: Cross multiply
    3,979.06x = 5,491.19 × 2,487.04
  4. Step 4: Simplify right side
    3,979.06x = 13,656,801.67
  5. Step 5: Solve for x
    x = 13,656,801.67/3,979.06
  6. Step 6: Final answer
    x = 3,432.17

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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.