Home / 2,276.99-3,142.29-1,268.76

Finding the Fourth Proportional to 2,276.99, 3,142.29 and 1,268.76

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Solution

The fourth proportional to 2,276.99, 3,142.29 and 1,268.76 is: 1,750.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.99 : 3,142.29 = 1,268.76 : x
  2. Step 2: Convert to fraction form
    2,276.99/3,142.29 = 1,268.76/x
  3. Step 3: Cross multiply
    2,276.99x = 3,142.29 × 1,268.76
  4. Step 4: Simplify right side
    2,276.99x = 3,986,819.56
  5. Step 5: Solve for x
    x = 3,986,819.56/2,276.99
  6. Step 6: Final answer
    x = 1,750.92

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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.