Home / 2,769.32-4,154.88-1,979.26

Finding the Fourth Proportional to 2,769.32, 4,154.88 and 1,979.26

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Solution

The fourth proportional to 2,769.32, 4,154.88 and 1,979.26 is: 2,969.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.32 : 4,154.88 = 1,979.26 : x
  2. Step 2: Convert to fraction form
    2,769.32/4,154.88 = 1,979.26/x
  3. Step 3: Cross multiply
    2,769.32x = 4,154.88 × 1,979.26
  4. Step 4: Simplify right side
    2,769.32x = 8,223,587.79
  5. Step 5: Solve for x
    x = 8,223,587.79/2,769.32
  6. Step 6: Final answer
    x = 2,969.53

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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.