Home / 7,110.30-10,665.72-2,728.20

Finding the Fourth Proportional to 7,110.30, 10,665.72 and 2,728.20

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Solution

The fourth proportional to 7,110.30, 10,665.72 and 2,728.20 is: 4,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.30 : 10,665.72 = 2,728.20 : x
  2. Step 2: Convert to fraction form
    7,110.30/10,665.72 = 2,728.20/x
  3. Step 3: Cross multiply
    7,110.30x = 10,665.72 × 2,728.20
  4. Step 4: Simplify right side
    7,110.30x = 29,098,217.30
  5. Step 5: Solve for x
    x = 29,098,217.30/7,110.30
  6. Step 6: Final answer
    x = 4,092.40

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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.