Home / 3,221.10-4,436.10-2,929.50

Finding the Fourth Proportional to 3,221.10, 4,436.10 and 2,929.50

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Solution

The fourth proportional to 3,221.10, 4,436.10 and 2,929.50 is: 4,034.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.10 : 4,436.10 = 2,929.50 : x
  2. Step 2: Convert to fraction form
    3,221.10/4,436.10 = 2,929.50/x
  3. Step 3: Cross multiply
    3,221.10x = 4,436.10 × 2,929.50
  4. Step 4: Simplify right side
    3,221.10x = 12,995,554.95
  5. Step 5: Solve for x
    x = 12,995,554.95/3,221.10
  6. Step 6: Final answer
    x = 4,034.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.