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Finding the Fourth Proportional to 7,179.96, 10,772.10 and 3,484.20

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Solution

The fourth proportional to 7,179.96, 10,772.10 and 3,484.20 is: 5,227.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.96 : 10,772.10 = 3,484.20 : x
  2. Step 2: Convert to fraction form
    7,179.96/10,772.10 = 3,484.20/x
  3. Step 3: Cross multiply
    7,179.96x = 10,772.10 × 3,484.20
  4. Step 4: Simplify right side
    7,179.96x = 37,532,150.82
  5. Step 5: Solve for x
    x = 37,532,150.82/7,179.96
  6. Step 6: Final answer
    x = 5,227.35

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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.