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Finding the Fourth Proportional to 5,223.52, 7,208.42 and 2,865.65

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Solution

The fourth proportional to 5,223.52, 7,208.42 and 2,865.65 is: 3,954.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.52 : 7,208.42 = 2,865.65 : x
  2. Step 2: Convert to fraction form
    5,223.52/7,208.42 = 2,865.65/x
  3. Step 3: Cross multiply
    5,223.52x = 7,208.42 × 2,865.65
  4. Step 4: Simplify right side
    5,223.52x = 20,656,758.40
  5. Step 5: Solve for x
    x = 20,656,758.40/5,223.52
  6. Step 6: Final answer
    x = 3,954.57

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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.