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Finding the Fourth Proportional to 6,393.45, 9,591.80 and 2,010.90

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Solution

The fourth proportional to 6,393.45, 9,591.80 and 2,010.90 is: 3,016.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,393.45 : 9,591.80 = 2,010.90 : x
  2. Step 2: Convert to fraction form
    6,393.45/9,591.80 = 2,010.90/x
  3. Step 3: Cross multiply
    6,393.45x = 9,591.80 × 2,010.90
  4. Step 4: Simplify right side
    6,393.45x = 19,288,140.57
  5. Step 5: Solve for x
    x = 19,288,140.57/6,393.45
  6. Step 6: Final answer
    x = 3,016.86

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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.