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Finding the Fourth Proportional to 7,100.32, 10,650.48 and 2,719.12

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Solution

The fourth proportional to 7,100.32, 10,650.48 and 2,719.12 is: 4,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,100.32 : 10,650.48 = 2,719.12 : x
  2. Step 2: Convert to fraction form
    7,100.32/10,650.48 = 2,719.12/x
  3. Step 3: Cross multiply
    7,100.32x = 10,650.48 × 2,719.12
  4. Step 4: Simplify right side
    7,100.32x = 28,959,933.18
  5. Step 5: Solve for x
    x = 28,959,933.18/7,100.32
  6. Step 6: Final answer
    x = 4,078.68

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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.