Home / 2,277.11-3,142.49-1,268.86

Finding the Fourth Proportional to 2,277.11, 3,142.49 and 1,268.86

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Solution

The fourth proportional to 2,277.11, 3,142.49 and 1,268.86 is: 1,751.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.11 : 3,142.49 = 1,268.86 : x
  2. Step 2: Convert to fraction form
    2,277.11/3,142.49 = 1,268.86/x
  3. Step 3: Cross multiply
    2,277.11x = 3,142.49 × 1,268.86
  4. Step 4: Simplify right side
    2,277.11x = 3,987,378.69
  5. Step 5: Solve for x
    x = 3,987,378.69/2,277.11
  6. Step 6: Final answer
    x = 1,751.07

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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.