Home / 8,822.70-13,235.13-2,979.90

Finding the Fourth Proportional to 8,822.70, 13,235.13 and 2,979.90

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Solution

The fourth proportional to 8,822.70, 13,235.13 and 2,979.90 is: 4,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,822.70 : 13,235.13 = 2,979.90 : x
  2. Step 2: Convert to fraction form
    8,822.70/13,235.13 = 2,979.90/x
  3. Step 3: Cross multiply
    8,822.70x = 13,235.13 × 2,979.90
  4. Step 4: Simplify right side
    8,822.70x = 39,439,363.89
  5. Step 5: Solve for x
    x = 39,439,363.89/8,822.70
  6. Step 6: Final answer
    x = 4,470.21

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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.