Home / 4,170.38-6,255.42-1,396.80

Finding the Fourth Proportional to 4,170.38, 6,255.42 and 1,396.80

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Solution

The fourth proportional to 4,170.38, 6,255.42 and 1,396.80 is: 2,095.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,170.38 : 6,255.42 = 1,396.80 : x
  2. Step 2: Convert to fraction form
    4,170.38/6,255.42 = 1,396.80/x
  3. Step 3: Cross multiply
    4,170.38x = 6,255.42 × 1,396.80
  4. Step 4: Simplify right side
    4,170.38x = 8,737,570.66
  5. Step 5: Solve for x
    x = 8,737,570.66/4,170.38
  6. Step 6: Final answer
    x = 2,095.15

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1.5x scale

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.