Home / 5,266.82-7,268.10-2,876.78

Finding the Fourth Proportional to 5,266.82, 7,268.10 and 2,876.78

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Solution

The fourth proportional to 5,266.82, 7,268.10 and 2,876.78 is: 3,969.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266.82 : 7,268.10 = 2,876.78 : x
  2. Step 2: Convert to fraction form
    5,266.82/7,268.10 = 2,876.78/x
  3. Step 3: Cross multiply
    5,266.82x = 7,268.10 × 2,876.78
  4. Step 4: Simplify right side
    5,266.82x = 20,908,724.72
  5. Step 5: Solve for x
    x = 20,908,724.72/5,266.82
  6. Step 6: Final answer
    x = 3,969.90

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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.