Home / 7,261.76-10,022.28-5,278.88

Finding the Fourth Proportional to 7,261.76, 10,022.28 and 5,278.88

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Solution

The fourth proportional to 7,261.76, 10,022.28 and 5,278.88 is: 7,285.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261.76 : 10,022.28 = 5,278.88 : x
  2. Step 2: Convert to fraction form
    7,261.76/10,022.28 = 5,278.88/x
  3. Step 3: Cross multiply
    7,261.76x = 10,022.28 × 5,278.88
  4. Step 4: Simplify right side
    7,261.76x = 52,906,413.45
  5. Step 5: Solve for x
    x = 52,906,413.45/7,261.76
  6. Step 6: Final answer
    x = 7,285.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.