Home / 2,745.12-4,118.42-1,283.52

Finding the Fourth Proportional to 2,745.12, 4,118.42 and 1,283.52

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Solution

The fourth proportional to 2,745.12, 4,118.42 and 1,283.52 is: 1,925.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.12 : 4,118.42 = 1,283.52 : x
  2. Step 2: Convert to fraction form
    2,745.12/4,118.42 = 1,283.52/x
  3. Step 3: Cross multiply
    2,745.12x = 4,118.42 × 1,283.52
  4. Step 4: Simplify right side
    2,745.12x = 5,286,074.44
  5. Step 5: Solve for x
    x = 5,286,074.44/2,745.12
  6. Step 6: Final answer
    x = 1,925.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.