Home / 5,266.91-7,268.28-2,876.87

Finding the Fourth Proportional to 5,266.91, 7,268.28 and 2,876.87

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Solution

The fourth proportional to 5,266.91, 7,268.28 and 2,876.87 is: 3,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266.91 : 7,268.28 = 2,876.87 : x
  2. Step 2: Convert to fraction form
    5,266.91/7,268.28 = 2,876.87/x
  3. Step 3: Cross multiply
    5,266.91x = 7,268.28 × 2,876.87
  4. Step 4: Simplify right side
    5,266.91x = 20,909,882.30
  5. Step 5: Solve for x
    x = 20,909,882.30/5,266.91
  6. Step 6: Final answer
    x = 3,970.05

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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.