Home / 2,736.75-4,102.68-1,275.11

Finding the Fourth Proportional to 2,736.75, 4,102.68 and 1,275.11

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Solution

The fourth proportional to 2,736.75, 4,102.68 and 1,275.11 is: 1,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,736.75 : 4,102.68 = 1,275.11 : x
  2. Step 2: Convert to fraction form
    2,736.75/4,102.68 = 1,275.11/x
  3. Step 3: Cross multiply
    2,736.75x = 4,102.68 × 1,275.11
  4. Step 4: Simplify right side
    2,736.75x = 5,231,347.78
  5. Step 5: Solve for x
    x = 5,231,347.78/2,736.75
  6. Step 6: Final answer
    x = 1,911.52

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1.5x scale

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.