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Finding the Fourth Proportional to 7,258.56, 10,887.84 and 2,879.10

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Solution

The fourth proportional to 7,258.56, 10,887.84 and 2,879.10 is: 4,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,258.56 : 10,887.84 = 2,879.10 : x
  2. Step 2: Convert to fraction form
    7,258.56/10,887.84 = 2,879.10/x
  3. Step 3: Cross multiply
    7,258.56x = 10,887.84 × 2,879.10
  4. Step 4: Simplify right side
    7,258.56x = 31,347,180.14
  5. Step 5: Solve for x
    x = 31,347,180.14/7,258.56
  6. Step 6: Final answer
    x = 4,318.65

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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.