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Finding the Fourth Proportional to 5,222.88, 7,207.74 and 2,865.18

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Solution

The fourth proportional to 5,222.88, 7,207.74 and 2,865.18 is: 3,954.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.88 : 7,207.74 = 2,865.18 : x
  2. Step 2: Convert to fraction form
    5,222.88/7,207.74 = 2,865.18/x
  3. Step 3: Cross multiply
    5,222.88x = 7,207.74 × 2,865.18
  4. Step 4: Simplify right side
    5,222.88x = 20,651,472.49
  5. Step 5: Solve for x
    x = 20,651,472.49/5,222.88
  6. Step 6: Final answer
    x = 3,954.04

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1.5x scale

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.