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Finding the Fourth Proportional to 5,134.68, 7,697.16 and 1,669.50

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Solution

The fourth proportional to 5,134.68, 7,697.16 and 1,669.50 is: 2,502.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,134.68 : 7,697.16 = 1,669.50 : x
  2. Step 2: Convert to fraction form
    5,134.68/7,697.16 = 1,669.50/x
  3. Step 3: Cross multiply
    5,134.68x = 7,697.16 × 1,669.50
  4. Step 4: Simplify right side
    5,134.68x = 12,850,408.62
  5. Step 5: Solve for x
    x = 12,850,408.62/5,134.68
  6. Step 6: Final answer
    x = 2,502.67

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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.