Home / 6,310.26-8,719.02-5,190.42

Finding the Fourth Proportional to 6,310.26, 8,719.02 and 5,190.42

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Solution

The fourth proportional to 6,310.26, 8,719.02 and 5,190.42 is: 7,171.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310.26 : 8,719.02 = 5,190.42 : x
  2. Step 2: Convert to fraction form
    6,310.26/8,719.02 = 5,190.42/x
  3. Step 3: Cross multiply
    6,310.26x = 8,719.02 × 5,190.42
  4. Step 4: Simplify right side
    6,310.26x = 45,255,375.79
  5. Step 5: Solve for x
    x = 45,255,375.79/6,310.26
  6. Step 6: Final answer
    x = 7,171.71

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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.