Home / 3,240.87-4,471.77-1,982.19

Finding the Fourth Proportional to 3,240.87, 4,471.77 and 1,982.19

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Solution

The fourth proportional to 3,240.87, 4,471.77 and 1,982.19 is: 2,735.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.87 : 4,471.77 = 1,982.19 : x
  2. Step 2: Convert to fraction form
    3,240.87/4,471.77 = 1,982.19/x
  3. Step 3: Cross multiply
    3,240.87x = 4,471.77 × 1,982.19
  4. Step 4: Simplify right side
    3,240.87x = 8,863,897.78
  5. Step 5: Solve for x
    x = 8,863,897.78/3,240.87
  6. Step 6: Final answer
    x = 2,735.04

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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.