Home / 2,731.50-3,769.47-1,489.50

Finding the Fourth Proportional to 2,731.50, 3,769.47 and 1,489.50

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Solution

The fourth proportional to 2,731.50, 3,769.47 and 1,489.50 is: 2,055.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.50 : 3,769.47 = 1,489.50 : x
  2. Step 2: Convert to fraction form
    2,731.50/3,769.47 = 1,489.50/x
  3. Step 3: Cross multiply
    2,731.50x = 3,769.47 × 1,489.50
  4. Step 4: Simplify right side
    2,731.50x = 5,614,625.57
  5. Step 5: Solve for x
    x = 5,614,625.57/2,731.50
  6. Step 6: Final answer
    x = 2,055.51

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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.