Home / 2,682.59-4,023.42-1,221.39

Finding the Fourth Proportional to 2,682.59, 4,023.42 and 1,221.39

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Solution

The fourth proportional to 2,682.59, 4,023.42 and 1,221.39 is: 1,831.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682.59 : 4,023.42 = 1,221.39 : x
  2. Step 2: Convert to fraction form
    2,682.59/4,023.42 = 1,221.39/x
  3. Step 3: Cross multiply
    2,682.59x = 4,023.42 × 1,221.39
  4. Step 4: Simplify right side
    2,682.59x = 4,914,160.37
  5. Step 5: Solve for x
    x = 4,914,160.37/2,682.59
  6. Step 6: Final answer
    x = 1,831.87

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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.