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Finding the Fourth Proportional to 2,581.65, 3,871.26 and 1,348.83

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Solution

The fourth proportional to 2,581.65, 3,871.26 and 1,348.83 is: 2,022.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.65 : 3,871.26 = 1,348.83 : x
  2. Step 2: Convert to fraction form
    2,581.65/3,871.26 = 1,348.83/x
  3. Step 3: Cross multiply
    2,581.65x = 3,871.26 × 1,348.83
  4. Step 4: Simplify right side
    2,581.65x = 5,221,671.63
  5. Step 5: Solve for x
    x = 5,221,671.63/2,581.65
  6. Step 6: Final answer
    x = 2,022.61

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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.