Home / 3,478.03-5,217.74-3,129.47

Finding the Fourth Proportional to 3,478.03, 5,217.74 and 3,129.47

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Solution

The fourth proportional to 3,478.03, 5,217.74 and 3,129.47 is: 4,694.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.03 : 5,217.74 = 3,129.47 : x
  2. Step 2: Convert to fraction form
    3,478.03/5,217.74 = 3,129.47/x
  3. Step 3: Cross multiply
    3,478.03x = 5,217.74 × 3,129.47
  4. Step 4: Simplify right side
    3,478.03x = 16,328,750.36
  5. Step 5: Solve for x
    x = 16,328,750.36/3,478.03
  6. Step 6: Final answer
    x = 4,694.83

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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.