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Finding the Fourth Proportional to 5,353.61, 8,019.21 and 3,396.11

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Solution

The fourth proportional to 5,353.61, 8,019.21 and 3,396.11 is: 5,087.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,353.61 : 8,019.21 = 3,396.11 : x
  2. Step 2: Convert to fraction form
    5,353.61/8,019.21 = 3,396.11/x
  3. Step 3: Cross multiply
    5,353.61x = 8,019.21 × 3,396.11
  4. Step 4: Simplify right side
    5,353.61x = 27,234,119.27
  5. Step 5: Solve for x
    x = 27,234,119.27/5,353.61
  6. Step 6: Final answer
    x = 5,087.06

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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.