Home / 2,745.88-3,789.35-1,551.11

Finding the Fourth Proportional to 2,745.88, 3,789.35 and 1,551.11

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Solution

The fourth proportional to 2,745.88, 3,789.35 and 1,551.11 is: 2,140.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.88 : 3,789.35 = 1,551.11 : x
  2. Step 2: Convert to fraction form
    2,745.88/3,789.35 = 1,551.11/x
  3. Step 3: Cross multiply
    2,745.88x = 3,789.35 × 1,551.11
  4. Step 4: Simplify right side
    2,745.88x = 5,877,683.61
  5. Step 5: Solve for x
    x = 5,877,683.61/2,745.88
  6. Step 6: Final answer
    x = 2,140.55

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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.