Home / 7,946.28-11,920.50-2,752.56

Finding the Fourth Proportional to 7,946.28, 11,920.50 and 2,752.56

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Solution

The fourth proportional to 7,946.28, 11,920.50 and 2,752.56 is: 4,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,946.28 : 11,920.50 = 2,752.56 : x
  2. Step 2: Convert to fraction form
    7,946.28/11,920.50 = 2,752.56/x
  3. Step 3: Cross multiply
    7,946.28x = 11,920.50 × 2,752.56
  4. Step 4: Simplify right side
    7,946.28x = 32,811,891.48
  5. Step 5: Solve for x
    x = 32,811,891.48/7,946.28
  6. Step 6: Final answer
    x = 4,129.21

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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.