Home / 2,489.40-3,732.26-2,146.77

Finding the Fourth Proportional to 2,489.40, 3,732.26 and 2,146.77

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Solution

The fourth proportional to 2,489.40, 3,732.26 and 2,146.77 is: 3,218.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.40 : 3,732.26 = 2,146.77 : x
  2. Step 2: Convert to fraction form
    2,489.40/3,732.26 = 2,146.77/x
  3. Step 3: Cross multiply
    2,489.40x = 3,732.26 × 2,146.77
  4. Step 4: Simplify right side
    2,489.40x = 8,012,293.07
  5. Step 5: Solve for x
    x = 8,012,293.07/2,489.40
  6. Step 6: Final answer
    x = 3,218.56

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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.