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Finding the Fourth Proportional to 7,832.79, 11,749.23 and 3,154.95

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Solution

The fourth proportional to 7,832.79, 11,749.23 and 3,154.95 is: 4,732.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,832.79 : 11,749.23 = 3,154.95 : x
  2. Step 2: Convert to fraction form
    7,832.79/11,749.23 = 3,154.95/x
  3. Step 3: Cross multiply
    7,832.79x = 11,749.23 × 3,154.95
  4. Step 4: Simplify right side
    7,832.79x = 37,068,233.19
  5. Step 5: Solve for x
    x = 37,068,233.19/7,832.79
  6. Step 6: Final answer
    x = 4,732.44

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Similar ratio
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1.5x scale

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.