Home / 4,145.12-5,718.52-2,745.44

Finding the Fourth Proportional to 4,145.12, 5,718.52 and 2,745.44

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Solution

The fourth proportional to 4,145.12, 5,718.52 and 2,745.44 is: 3,787.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.12 : 5,718.52 = 2,745.44 : x
  2. Step 2: Convert to fraction form
    4,145.12/5,718.52 = 2,745.44/x
  3. Step 3: Cross multiply
    4,145.12x = 5,718.52 × 2,745.44
  4. Step 4: Simplify right side
    4,145.12x = 15,699,853.55
  5. Step 5: Solve for x
    x = 15,699,853.55/4,145.12
  6. Step 6: Final answer
    x = 3,787.55

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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.