Home / 3,105.20-4,657.56-1,350.16

Finding the Fourth Proportional to 3,105.20, 4,657.56 and 1,350.16

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Solution

The fourth proportional to 3,105.20, 4,657.56 and 1,350.16 is: 2,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.20 : 4,657.56 = 1,350.16 : x
  2. Step 2: Convert to fraction form
    3,105.20/4,657.56 = 1,350.16/x
  3. Step 3: Cross multiply
    3,105.20x = 4,657.56 × 1,350.16
  4. Step 4: Simplify right side
    3,105.20x = 6,288,451.21
  5. Step 5: Solve for x
    x = 6,288,451.21/3,105.20
  6. Step 6: Final answer
    x = 2,025.14

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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.