Home / 2,731.19-3,769.02-1,489.19

Finding the Fourth Proportional to 2,731.19, 3,769.02 and 1,489.19

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Solution

The fourth proportional to 2,731.19, 3,769.02 and 1,489.19 is: 2,055.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.19 : 3,769.02 = 1,489.19 : x
  2. Step 2: Convert to fraction form
    2,731.19/3,769.02 = 1,489.19/x
  3. Step 3: Cross multiply
    2,731.19x = 3,769.02 × 1,489.19
  4. Step 4: Simplify right side
    2,731.19x = 5,612,768.05
  5. Step 5: Solve for x
    x = 5,612,768.05/2,731.19
  6. Step 6: Final answer
    x = 2,055.07

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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.