Home / 2,006.60-2,769.08-1,122.39

Finding the Fourth Proportional to 2,006.60, 2,769.08 and 1,122.39

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Solution

The fourth proportional to 2,006.60, 2,769.08 and 1,122.39 is: 1,548.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.60 : 2,769.08 = 1,122.39 : x
  2. Step 2: Convert to fraction form
    2,006.60/2,769.08 = 1,122.39/x
  3. Step 3: Cross multiply
    2,006.60x = 2,769.08 × 1,122.39
  4. Step 4: Simplify right side
    2,006.60x = 3,107,982.09
  5. Step 5: Solve for x
    x = 3,107,982.09/2,006.60
  6. Step 6: Final answer
    x = 1,548.88

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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.