Home / 2,958.40-4,081.16-1,951.16

Finding the Fourth Proportional to 2,958.40, 4,081.16 and 1,951.16

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Solution

The fourth proportional to 2,958.40, 4,081.16 and 1,951.16 is: 2,691.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.40 : 4,081.16 = 1,951.16 : x
  2. Step 2: Convert to fraction form
    2,958.40/4,081.16 = 1,951.16/x
  3. Step 3: Cross multiply
    2,958.40x = 4,081.16 × 1,951.16
  4. Step 4: Simplify right side
    2,958.40x = 7,962,996.15
  5. Step 5: Solve for x
    x = 7,962,996.15/2,958.40
  6. Step 6: Final answer
    x = 2,691.66

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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.