Home / 5,280.28-7,286.84-2,922.56

Finding the Fourth Proportional to 5,280.28, 7,286.84 and 2,922.56

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Solution

The fourth proportional to 5,280.28, 7,286.84 and 2,922.56 is: 4,033.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.28 : 7,286.84 = 2,922.56 : x
  2. Step 2: Convert to fraction form
    5,280.28/7,286.84 = 2,922.56/x
  3. Step 3: Cross multiply
    5,280.28x = 7,286.84 × 2,922.56
  4. Step 4: Simplify right side
    5,280.28x = 21,296,227.11
  5. Step 5: Solve for x
    x = 21,296,227.11/5,280.28
  6. Step 6: Final answer
    x = 4,033.16

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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.