Home / 2,735.12-4,105.13-1,275.10

Finding the Fourth Proportional to 2,735.12, 4,105.13 and 1,275.10

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Solution

The fourth proportional to 2,735.12, 4,105.13 and 1,275.10 is: 1,913.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,735.12 : 4,105.13 = 1,275.10 : x
  2. Step 2: Convert to fraction form
    2,735.12/4,105.13 = 1,275.10/x
  3. Step 3: Cross multiply
    2,735.12x = 4,105.13 × 1,275.10
  4. Step 4: Simplify right side
    2,735.12x = 5,234,434.62
  5. Step 5: Solve for x
    x = 5,234,434.62/2,735.12
  6. Step 6: Final answer
    x = 1,913.78

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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.