Home / 8,880.58-13,318.55-2,639.12

Finding the Fourth Proportional to 8,880.58, 13,318.55 and 2,639.12

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Solution

The fourth proportional to 8,880.58, 13,318.55 and 2,639.12 is: 3,957.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.58 : 13,318.55 = 2,639.12 : x
  2. Step 2: Convert to fraction form
    8,880.58/13,318.55 = 2,639.12/x
  3. Step 3: Cross multiply
    8,880.58x = 13,318.55 × 2,639.12
  4. Step 4: Simplify right side
    8,880.58x = 35,149,251.68
  5. Step 5: Solve for x
    x = 35,149,251.68/8,880.58
  6. Step 6: Final answer
    x = 3,957.99

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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.