Home / 3,449.68-4,731.91-3,420.03

Finding the Fourth Proportional to 3,449.68, 4,731.91 and 3,420.03

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Solution

The fourth proportional to 3,449.68, 4,731.91 and 3,420.03 is: 4,691.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.68 : 4,731.91 = 3,420.03 : x
  2. Step 2: Convert to fraction form
    3,449.68/4,731.91 = 3,420.03/x
  3. Step 3: Cross multiply
    3,449.68x = 4,731.91 × 3,420.03
  4. Step 4: Simplify right side
    3,449.68x = 16,183,274.16
  5. Step 5: Solve for x
    x = 16,183,274.16/3,449.68
  6. Step 6: Final answer
    x = 4,691.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.