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Finding the Fourth Proportional to 5,459.68, 8,189.68 and 3,622.56

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Solution

The fourth proportional to 5,459.68, 8,189.68 and 3,622.56 is: 5,433.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.68 : 8,189.68 = 3,622.56 : x
  2. Step 2: Convert to fraction form
    5,459.68/8,189.68 = 3,622.56/x
  3. Step 3: Cross multiply
    5,459.68x = 8,189.68 × 3,622.56
  4. Step 4: Simplify right side
    5,459.68x = 29,667,607.18
  5. Step 5: Solve for x
    x = 29,667,607.18/5,459.68
  6. Step 6: Final answer
    x = 5,433.95

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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.