Home / 3,745.90-5,617.11-2,186.35

Finding the Fourth Proportional to 3,745.90, 5,617.11 and 2,186.35

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Solution

The fourth proportional to 3,745.90, 5,617.11 and 2,186.35 is: 3,278.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.90 : 5,617.11 = 2,186.35 : x
  2. Step 2: Convert to fraction form
    3,745.90/5,617.11 = 2,186.35/x
  3. Step 3: Cross multiply
    3,745.90x = 5,617.11 × 2,186.35
  4. Step 4: Simplify right side
    3,745.90x = 12,280,994.20
  5. Step 5: Solve for x
    x = 12,280,994.20/3,745.90
  6. Step 6: Final answer
    x = 3,278.52

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1.5x scale

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.