Home / 6,172.28-8,517.75-3,377.78

Finding the Fourth Proportional to 6,172.28, 8,517.75 and 3,377.78

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Solution

The fourth proportional to 6,172.28, 8,517.75 and 3,377.78 is: 4,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.28 : 8,517.75 = 3,377.78 : x
  2. Step 2: Convert to fraction form
    6,172.28/8,517.75 = 3,377.78/x
  3. Step 3: Cross multiply
    6,172.28x = 8,517.75 × 3,377.78
  4. Step 4: Simplify right side
    6,172.28x = 28,771,085.60
  5. Step 5: Solve for x
    x = 28,771,085.60/6,172.28
  6. Step 6: Final answer
    x = 4,661.34

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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.