Home / 8,822.40-13,235.04-2,979.36

Finding the Fourth Proportional to 8,822.40, 13,235.04 and 2,979.36

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Solution

The fourth proportional to 8,822.40, 13,235.04 and 2,979.36 is: 4,469.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,822.40 : 13,235.04 = 2,979.36 : x
  2. Step 2: Convert to fraction form
    8,822.40/13,235.04 = 2,979.36/x
  3. Step 3: Cross multiply
    8,822.40x = 13,235.04 × 2,979.36
  4. Step 4: Simplify right side
    8,822.40x = 39,431,948.77
  5. Step 5: Solve for x
    x = 39,431,948.77/8,822.40
  6. Step 6: Final answer
    x = 4,469.53

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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.