Home / 3,138.27-4,327.27-2,569.33

Finding the Fourth Proportional to 3,138.27, 4,327.27 and 2,569.33

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Solution

The fourth proportional to 3,138.27, 4,327.27 and 2,569.33 is: 3,542.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.27 : 4,327.27 = 2,569.33 : x
  2. Step 2: Convert to fraction form
    3,138.27/4,327.27 = 2,569.33/x
  3. Step 3: Cross multiply
    3,138.27x = 4,327.27 × 2,569.33
  4. Step 4: Simplify right side
    3,138.27x = 11,118,184.63
  5. Step 5: Solve for x
    x = 11,118,184.63/3,138.27
  6. Step 6: Final answer
    x = 3,542.78

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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.