Home / 3,439.26-5,155.20-2,615.49

Finding the Fourth Proportional to 3,439.26, 5,155.20 and 2,615.49

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Solution

The fourth proportional to 3,439.26, 5,155.20 and 2,615.49 is: 3,920.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.26 : 5,155.20 = 2,615.49 : x
  2. Step 2: Convert to fraction form
    3,439.26/5,155.20 = 2,615.49/x
  3. Step 3: Cross multiply
    3,439.26x = 5,155.20 × 2,615.49
  4. Step 4: Simplify right side
    3,439.26x = 13,483,374.05
  5. Step 5: Solve for x
    x = 13,483,374.05/3,439.26
  6. Step 6: Final answer
    x = 3,920.43

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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.