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Finding the Fourth Proportional to 6,873.19, 10,309.78 and 2,769.19

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Solution

The fourth proportional to 6,873.19, 10,309.78 and 2,769.19 is: 4,153.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,873.19 : 10,309.78 = 2,769.19 : x
  2. Step 2: Convert to fraction form
    6,873.19/10,309.78 = 2,769.19/x
  3. Step 3: Cross multiply
    6,873.19x = 10,309.78 × 2,769.19
  4. Step 4: Simplify right side
    6,873.19x = 28,549,717.37
  5. Step 5: Solve for x
    x = 28,549,717.37/6,873.19
  6. Step 6: Final answer
    x = 4,153.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.