Home / 3,610.60-4,967.78-3,380.20

Finding the Fourth Proportional to 3,610.60, 4,967.78 and 3,380.20

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Solution

The fourth proportional to 3,610.60, 4,967.78 and 3,380.20 is: 4,650.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.60 : 4,967.78 = 3,380.20 : x
  2. Step 2: Convert to fraction form
    3,610.60/4,967.78 = 3,380.20/x
  3. Step 3: Cross multiply
    3,610.60x = 4,967.78 × 3,380.20
  4. Step 4: Simplify right side
    3,610.60x = 16,792,089.96
  5. Step 5: Solve for x
    x = 16,792,089.96/3,610.60
  6. Step 6: Final answer
    x = 4,650.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.