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Finding the Fourth Proportional to 6,792.47, 9,375.90 and 4,278.79

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Solution

The fourth proportional to 6,792.47, 9,375.90 and 4,278.79 is: 5,906.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,792.47 : 9,375.90 = 4,278.79 : x
  2. Step 2: Convert to fraction form
    6,792.47/9,375.90 = 4,278.79/x
  3. Step 3: Cross multiply
    6,792.47x = 9,375.90 × 4,278.79
  4. Step 4: Simplify right side
    6,792.47x = 40,117,507.16
  5. Step 5: Solve for x
    x = 40,117,507.16/6,792.47
  6. Step 6: Final answer
    x = 5,906.17

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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.