Home / 6,351.60-8,765.88-3,519.21

Finding the Fourth Proportional to 6,351.60, 8,765.88 and 3,519.21

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Solution

The fourth proportional to 6,351.60, 8,765.88 and 3,519.21 is: 4,856.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,351.60 : 8,765.88 = 3,519.21 : x
  2. Step 2: Convert to fraction form
    6,351.60/8,765.88 = 3,519.21/x
  3. Step 3: Cross multiply
    6,351.60x = 8,765.88 × 3,519.21
  4. Step 4: Simplify right side
    6,351.60x = 30,848,972.55
  5. Step 5: Solve for x
    x = 30,848,972.55/6,351.60
  6. Step 6: Final answer
    x = 4,856.88

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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.