Home / 2,295.75-3,168.15-1,247.85

Finding the Fourth Proportional to 2,295.75, 3,168.15 and 1,247.85

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Solution

The fourth proportional to 2,295.75, 3,168.15 and 1,247.85 is: 1,722.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,295.75 : 3,168.15 = 1,247.85 : x
  2. Step 2: Convert to fraction form
    2,295.75/3,168.15 = 1,247.85/x
  3. Step 3: Cross multiply
    2,295.75x = 3,168.15 × 1,247.85
  4. Step 4: Simplify right side
    2,295.75x = 3,953,375.98
  5. Step 5: Solve for x
    x = 3,953,375.98/2,295.75
  6. Step 6: Final answer
    x = 1,722.04

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1.5x scale

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.