Home / 2,170.32-3,250.80-1,348.80

Finding the Fourth Proportional to 2,170.32, 3,250.80 and 1,348.80

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Solution

The fourth proportional to 2,170.32, 3,250.80 and 1,348.80 is: 2,020.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.32 : 3,250.80 = 1,348.80 : x
  2. Step 2: Convert to fraction form
    2,170.32/3,250.80 = 1,348.80/x
  3. Step 3: Cross multiply
    2,170.32x = 3,250.80 × 1,348.80
  4. Step 4: Simplify right side
    2,170.32x = 4,384,679.04
  5. Step 5: Solve for x
    x = 4,384,679.04/2,170.32
  6. Step 6: Final answer
    x = 2,020.29

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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.