Home / 7,946.62-11,920.50-2,103.16

Finding the Fourth Proportional to 7,946.62, 11,920.50 and 2,103.16

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Solution

The fourth proportional to 7,946.62, 11,920.50 and 2,103.16 is: 3,154.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.62 : 11,920.50 = 2,103.16 : x
  2. Step 2: Convert to fraction form
    7,946.62/11,920.50 = 2,103.16/x
  3. Step 3: Cross multiply
    7,946.62x = 11,920.50 × 2,103.16
  4. Step 4: Simplify right side
    7,946.62x = 25,070,648.66
  5. Step 5: Solve for x
    x = 25,070,648.66/7,946.62
  6. Step 6: Final answer
    x = 3,154.88

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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.