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Finding the Fourth Proportional to 7,152.54, 10,728.80 and 2,222.22

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Solution

The fourth proportional to 7,152.54, 10,728.80 and 2,222.22 is: 3,333.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152.54 : 10,728.80 = 2,222.22 : x
  2. Step 2: Convert to fraction form
    7,152.54/10,728.80 = 2,222.22/x
  3. Step 3: Cross multiply
    7,152.54x = 10,728.80 × 2,222.22
  4. Step 4: Simplify right side
    7,152.54x = 23,841,742.82
  5. Step 5: Solve for x
    x = 23,841,742.82/7,152.54
  6. Step 6: Final answer
    x = 3,333.33

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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.