Home / 3,091.25-4,265.87-2,208.56

Finding the Fourth Proportional to 3,091.25, 4,265.87 and 2,208.56

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Solution

The fourth proportional to 3,091.25, 4,265.87 and 2,208.56 is: 3,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.25 : 4,265.87 = 2,208.56 : x
  2. Step 2: Convert to fraction form
    3,091.25/4,265.87 = 2,208.56/x
  3. Step 3: Cross multiply
    3,091.25x = 4,265.87 × 2,208.56
  4. Step 4: Simplify right side
    3,091.25x = 9,421,397.48
  5. Step 5: Solve for x
    x = 9,421,397.48/3,091.25
  6. Step 6: Final answer
    x = 3,047.76

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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.