Home / 2,631.26-3,946.10-2,167.89

Finding the Fourth Proportional to 2,631.26, 3,946.10 and 2,167.89

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Solution

The fourth proportional to 2,631.26, 3,946.10 and 2,167.89 is: 3,251.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.26 : 3,946.10 = 2,167.89 : x
  2. Step 2: Convert to fraction form
    2,631.26/3,946.10 = 2,167.89/x
  3. Step 3: Cross multiply
    2,631.26x = 3,946.10 × 2,167.89
  4. Step 4: Simplify right side
    2,631.26x = 8,554,680.16
  5. Step 5: Solve for x
    x = 8,554,680.16/2,631.26
  6. Step 6: Final answer
    x = 3,251.18

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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.