Home / 7,960.38-11,939.66-2,117.44

Finding the Fourth Proportional to 7,960.38, 11,939.66 and 2,117.44

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Solution

The fourth proportional to 7,960.38, 11,939.66 and 2,117.44 is: 3,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.38 : 11,939.66 = 2,117.44 : x
  2. Step 2: Convert to fraction form
    7,960.38/11,939.66 = 2,117.44/x
  3. Step 3: Cross multiply
    7,960.38x = 11,939.66 × 2,117.44
  4. Step 4: Simplify right side
    7,960.38x = 25,281,513.67
  5. Step 5: Solve for x
    x = 25,281,513.67/7,960.38
  6. Step 6: Final answer
    x = 3,175.92

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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.