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Finding the Fourth Proportional to 5,007.86, 6,910.79 and 2,769.78

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Solution

The fourth proportional to 5,007.86, 6,910.79 and 2,769.78 is: 3,822.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.86 : 6,910.79 = 2,769.78 : x
  2. Step 2: Convert to fraction form
    5,007.86/6,910.79 = 2,769.78/x
  3. Step 3: Cross multiply
    5,007.86x = 6,910.79 × 2,769.78
  4. Step 4: Simplify right side
    5,007.86x = 19,141,367.93
  5. Step 5: Solve for x
    x = 19,141,367.93/5,007.86
  6. Step 6: Final answer
    x = 3,822.26

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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.