Home / 2,769.67-3,821.08-1,774.78

Finding the Fourth Proportional to 2,769.67, 3,821.08 and 1,774.78

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Solution

The fourth proportional to 2,769.67, 3,821.08 and 1,774.78 is: 2,448.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.67 : 3,821.08 = 1,774.78 : x
  2. Step 2: Convert to fraction form
    2,769.67/3,821.08 = 1,774.78/x
  3. Step 3: Cross multiply
    2,769.67x = 3,821.08 × 1,774.78
  4. Step 4: Simplify right side
    2,769.67x = 6,781,576.36
  5. Step 5: Solve for x
    x = 6,781,576.36/2,769.67
  6. Step 6: Final answer
    x = 2,448.51

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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.