Home / 2,734.78-3,773.99-1,555.85

Finding the Fourth Proportional to 2,734.78, 3,773.99 and 1,555.85

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Solution

The fourth proportional to 2,734.78, 3,773.99 and 1,555.85 is: 2,147.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,734.78 : 3,773.99 = 1,555.85 : x
  2. Step 2: Convert to fraction form
    2,734.78/3,773.99 = 1,555.85/x
  3. Step 3: Cross multiply
    2,734.78x = 3,773.99 × 1,555.85
  4. Step 4: Simplify right side
    2,734.78x = 5,871,762.34
  5. Step 5: Solve for x
    x = 5,871,762.34/2,734.78
  6. Step 6: Final answer
    x = 2,147.07

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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.