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Finding the Fourth Proportional to 6,761.40, 10,151.70 and 4,169.40

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Solution

The fourth proportional to 6,761.40, 10,151.70 and 4,169.40 is: 6,260.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,761.40 : 10,151.70 = 4,169.40 : x
  2. Step 2: Convert to fraction form
    6,761.40/10,151.70 = 4,169.40/x
  3. Step 3: Cross multiply
    6,761.40x = 10,151.70 × 4,169.40
  4. Step 4: Simplify right side
    6,761.40x = 42,326,497.98
  5. Step 5: Solve for x
    x = 42,326,497.98/6,761.40
  6. Step 6: Final answer
    x = 6,260.02

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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.