Home / 2,167.32-3,247.20-1,299.72

Finding the Fourth Proportional to 2,167.32, 3,247.20 and 1,299.72

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Solution

The fourth proportional to 2,167.32, 3,247.20 and 1,299.72 is: 1,947.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.32 : 3,247.20 = 1,299.72 : x
  2. Step 2: Convert to fraction form
    2,167.32/3,247.20 = 1,299.72/x
  3. Step 3: Cross multiply
    2,167.32x = 3,247.20 × 1,299.72
  4. Step 4: Simplify right side
    2,167.32x = 4,220,450.78
  5. Step 5: Solve for x
    x = 4,220,450.78/2,167.32
  6. Step 6: Final answer
    x = 1,947.31

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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.