Home / 5,459.75-8,191.45-2,171.96

Finding the Fourth Proportional to 5,459.75, 8,191.45 and 2,171.96

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Solution

The fourth proportional to 5,459.75, 8,191.45 and 2,171.96 is: 3,258.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.75 : 8,191.45 = 2,171.96 : x
  2. Step 2: Convert to fraction form
    5,459.75/8,191.45 = 2,171.96/x
  3. Step 3: Cross multiply
    5,459.75x = 8,191.45 × 2,171.96
  4. Step 4: Simplify right side
    5,459.75x = 17,791,524.94
  5. Step 5: Solve for x
    x = 17,791,524.94/5,459.75
  6. Step 6: Final answer
    x = 3,258.67

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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.