Home / 3,142.13-4,336.13-1,745.15

Finding the Fourth Proportional to 3,142.13, 4,336.13 and 1,745.15

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Solution

The fourth proportional to 3,142.13, 4,336.13 and 1,745.15 is: 2,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.13 : 4,336.13 = 1,745.15 : x
  2. Step 2: Convert to fraction form
    3,142.13/4,336.13 = 1,745.15/x
  3. Step 3: Cross multiply
    3,142.13x = 4,336.13 × 1,745.15
  4. Step 4: Simplify right side
    3,142.13x = 7,567,179.95
  5. Step 5: Solve for x
    x = 7,567,179.95/3,142.13
  6. Step 6: Final answer
    x = 2,408.30

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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.