Home / 3,157.68-4,736.52-1,105.20

Finding the Fourth Proportional to 3,157.68, 4,736.52 and 1,105.20

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Solution

The fourth proportional to 3,157.68, 4,736.52 and 1,105.20 is: 1,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.68 : 4,736.52 = 1,105.20 : x
  2. Step 2: Convert to fraction form
    3,157.68/4,736.52 = 1,105.20/x
  3. Step 3: Cross multiply
    3,157.68x = 4,736.52 × 1,105.20
  4. Step 4: Simplify right side
    3,157.68x = 5,234,801.90
  5. Step 5: Solve for x
    x = 5,234,801.90/3,157.68
  6. Step 6: Final answer
    x = 1,657.80

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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.