Home / 5,266.55-7,267.86-2,876.57

Finding the Fourth Proportional to 5,266.55, 7,267.86 and 2,876.57

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Solution

The fourth proportional to 5,266.55, 7,267.86 and 2,876.57 is: 3,969.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266.55 : 7,267.86 = 2,876.57 : x
  2. Step 2: Convert to fraction form
    5,266.55/7,267.86 = 2,876.57/x
  3. Step 3: Cross multiply
    5,266.55x = 7,267.86 × 2,876.57
  4. Step 4: Simplify right side
    5,266.55x = 20,906,508.04
  5. Step 5: Solve for x
    x = 20,906,508.04/5,266.55
  6. Step 6: Final answer
    x = 3,969.68

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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.