Home / 3,439.22-5,155.26-2,615.78

Finding the Fourth Proportional to 3,439.22, 5,155.26 and 2,615.78

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Solution

The fourth proportional to 3,439.22, 5,155.26 and 2,615.78 is: 3,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.22 : 5,155.26 = 2,615.78 : x
  2. Step 2: Convert to fraction form
    3,439.22/5,155.26 = 2,615.78/x
  3. Step 3: Cross multiply
    3,439.22x = 5,155.26 × 2,615.78
  4. Step 4: Simplify right side
    3,439.22x = 13,485,026.00
  5. Step 5: Solve for x
    x = 13,485,026.00/3,439.22
  6. Step 6: Final answer
    x = 3,920.95

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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.