Home / 2,132.48-3,199.80-979.04

Finding the Fourth Proportional to 2,132.48, 3,199.80 and 979.04

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Solution

The fourth proportional to 2,132.48, 3,199.80 and 979.04 is: 1,469.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.48 : 3,199.80 = 979.04 : x
  2. Step 2: Convert to fraction form
    2,132.48/3,199.80 = 979.04/x
  3. Step 3: Cross multiply
    2,132.48x = 3,199.80 × 979.04
  4. Step 4: Simplify right side
    2,132.48x = 3,132,732.19
  5. Step 5: Solve for x
    x = 3,132,732.19/2,132.48
  6. Step 6: Final answer
    x = 1,469.06

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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.