Home / 2,169.40-3,247.46-1,192.54

Finding the Fourth Proportional to 2,169.40, 3,247.46 and 1,192.54

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Solution

The fourth proportional to 2,169.40, 3,247.46 and 1,192.54 is: 1,785.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.40 : 3,247.46 = 1,192.54 : x
  2. Step 2: Convert to fraction form
    2,169.40/3,247.46 = 1,192.54/x
  3. Step 3: Cross multiply
    2,169.40x = 3,247.46 × 1,192.54
  4. Step 4: Simplify right side
    2,169.40x = 3,872,725.95
  5. Step 5: Solve for x
    x = 3,872,725.95/2,169.40
  6. Step 6: Final answer
    x = 1,785.16

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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.