Home / 3,132.34-4,311.72-2,758.12

Finding the Fourth Proportional to 3,132.34, 4,311.72 and 2,758.12

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Solution

The fourth proportional to 3,132.34, 4,311.72 and 2,758.12 is: 3,796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.34 : 4,311.72 = 2,758.12 : x
  2. Step 2: Convert to fraction form
    3,132.34/4,311.72 = 2,758.12/x
  3. Step 3: Cross multiply
    3,132.34x = 4,311.72 × 2,758.12
  4. Step 4: Simplify right side
    3,132.34x = 11,892,241.17
  5. Step 5: Solve for x
    x = 11,892,241.17/3,132.34
  6. Step 6: Final answer
    x = 3,796.60

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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.