Home / 2,731.79-3,770.19-1,553.04

Finding the Fourth Proportional to 2,731.79, 3,770.19 and 1,553.04

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Solution

The fourth proportional to 2,731.79, 3,770.19 and 1,553.04 is: 2,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.79 : 3,770.19 = 1,553.04 : x
  2. Step 2: Convert to fraction form
    2,731.79/3,770.19 = 1,553.04/x
  3. Step 3: Cross multiply
    2,731.79x = 3,770.19 × 1,553.04
  4. Step 4: Simplify right side
    2,731.79x = 5,855,255.88
  5. Step 5: Solve for x
    x = 5,855,255.88/2,731.79
  6. Step 6: Final answer
    x = 2,143.38

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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.