Home / 6,761.39-10,142.89-2,379.29

Finding the Fourth Proportional to 6,761.39, 10,142.89 and 2,379.29

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Solution

The fourth proportional to 6,761.39, 10,142.89 and 2,379.29 is: 3,569.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,761.39 : 10,142.89 = 2,379.29 : x
  2. Step 2: Convert to fraction form
    6,761.39/10,142.89 = 2,379.29/x
  3. Step 3: Cross multiply
    6,761.39x = 10,142.89 × 2,379.29
  4. Step 4: Simplify right side
    6,761.39x = 24,132,820.09
  5. Step 5: Solve for x
    x = 24,132,820.09/6,761.39
  6. Step 6: Final answer
    x = 3,569.21

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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.