Home / 8,908.40-13,358.84-2,669.30

Finding the Fourth Proportional to 8,908.40, 13,358.84 and 2,669.30

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Solution

The fourth proportional to 8,908.40, 13,358.84 and 2,669.30 is: 4,002.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.40 : 13,358.84 = 2,669.30 : x
  2. Step 2: Convert to fraction form
    8,908.40/13,358.84 = 2,669.30/x
  3. Step 3: Cross multiply
    8,908.40x = 13,358.84 × 2,669.30
  4. Step 4: Simplify right side
    8,908.40x = 35,658,751.61
  5. Step 5: Solve for x
    x = 35,658,751.61/8,908.40
  6. Step 6: Final answer
    x = 4,002.82

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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.