Home / 8,880.72-13,318.80-2,639.26

Finding the Fourth Proportional to 8,880.72, 13,318.80 and 2,639.26

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Solution

The fourth proportional to 8,880.72, 13,318.80 and 2,639.26 is: 3,958.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.72 : 13,318.80 = 2,639.26 : x
  2. Step 2: Convert to fraction form
    8,880.72/13,318.80 = 2,639.26/x
  3. Step 3: Cross multiply
    8,880.72x = 13,318.80 × 2,639.26
  4. Step 4: Simplify right side
    8,880.72x = 35,151,776.09
  5. Step 5: Solve for x
    x = 35,151,776.09/8,880.72
  6. Step 6: Final answer
    x = 3,958.21

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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.