Home / 5,268.27-7,269.92-2,877.78

Finding the Fourth Proportional to 5,268.27, 7,269.92 and 2,877.78

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Solution

The fourth proportional to 5,268.27, 7,269.92 and 2,877.78 is: 3,971.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.27 : 7,269.92 = 2,877.78 : x
  2. Step 2: Convert to fraction form
    5,268.27/7,269.92 = 2,877.78/x
  3. Step 3: Cross multiply
    5,268.27x = 7,269.92 × 2,877.78
  4. Step 4: Simplify right side
    5,268.27x = 20,921,215.99
  5. Step 5: Solve for x
    x = 20,921,215.99/5,268.27
  6. Step 6: Final answer
    x = 3,971.17

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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.