Home / 7,152.13-10,728.88-2,220.44

Finding the Fourth Proportional to 7,152.13, 10,728.88 and 2,220.44

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Solution

The fourth proportional to 7,152.13, 10,728.88 and 2,220.44 is: 3,330.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152.13 : 10,728.88 = 2,220.44 : x
  2. Step 2: Convert to fraction form
    7,152.13/10,728.88 = 2,220.44/x
  3. Step 3: Cross multiply
    7,152.13x = 10,728.88 × 2,220.44
  4. Step 4: Simplify right side
    7,152.13x = 23,822,847.95
  5. Step 5: Solve for x
    x = 23,822,847.95/7,152.13
  6. Step 6: Final answer
    x = 3,330.88

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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.