Home / 8,879.26-13,316.40-2,639.02

Finding the Fourth Proportional to 8,879.26, 13,316.40 and 2,639.02

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Solution

The fourth proportional to 8,879.26, 13,316.40 and 2,639.02 is: 3,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.26 : 13,316.40 = 2,639.02 : x
  2. Step 2: Convert to fraction form
    8,879.26/13,316.40 = 2,639.02/x
  3. Step 3: Cross multiply
    8,879.26x = 13,316.40 × 2,639.02
  4. Step 4: Simplify right side
    8,879.26x = 35,142,245.93
  5. Step 5: Solve for x
    x = 35,142,245.93/8,879.26
  6. Step 6: Final answer
    x = 3,957.79

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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.