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Finding the Fourth Proportional to 5,223.46, 7,208.34 and 2,865.61

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Solution

The fourth proportional to 5,223.46, 7,208.34 and 2,865.61 is: 3,954.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.46 : 7,208.34 = 2,865.61 : x
  2. Step 2: Convert to fraction form
    5,223.46/7,208.34 = 2,865.61/x
  3. Step 3: Cross multiply
    5,223.46x = 7,208.34 × 2,865.61
  4. Step 4: Simplify right side
    5,223.46x = 20,656,291.19
  5. Step 5: Solve for x
    x = 20,656,291.19/5,223.46
  6. Step 6: Final answer
    x = 3,954.52

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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.