Home / 7,939.20-11,902.08-3,006.12

Finding the Fourth Proportional to 7,939.20, 11,902.08 and 3,006.12

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Solution

The fourth proportional to 7,939.20, 11,902.08 and 3,006.12 is: 4,506.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.20 : 11,902.08 = 3,006.12 : x
  2. Step 2: Convert to fraction form
    7,939.20/11,902.08 = 3,006.12/x
  3. Step 3: Cross multiply
    7,939.20x = 11,902.08 × 3,006.12
  4. Step 4: Simplify right side
    7,939.20x = 35,779,080.73
  5. Step 5: Solve for x
    x = 35,779,080.73/7,939.20
  6. Step 6: Final answer
    x = 4,506.64

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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.