Home / 4,399.20-6,575.40-3,103.20

Finding the Fourth Proportional to 4,399.20, 6,575.40 and 3,103.20

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Solution

The fourth proportional to 4,399.20, 6,575.40 and 3,103.20 is: 4,638.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,399.20 : 6,575.40 = 3,103.20 : x
  2. Step 2: Convert to fraction form
    4,399.20/6,575.40 = 3,103.20/x
  3. Step 3: Cross multiply
    4,399.20x = 6,575.40 × 3,103.20
  4. Step 4: Simplify right side
    4,399.20x = 20,404,781.28
  5. Step 5: Solve for x
    x = 20,404,781.28/4,399.20
  6. Step 6: Final answer
    x = 4,638.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.