Home / 3,459.72-5,188.84-1,119.94

Finding the Fourth Proportional to 3,459.72, 5,188.84 and 1,119.94

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Solution

The fourth proportional to 3,459.72, 5,188.84 and 1,119.94 is: 1,679.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.72 : 5,188.84 = 1,119.94 : x
  2. Step 2: Convert to fraction form
    3,459.72/5,188.84 = 1,119.94/x
  3. Step 3: Cross multiply
    3,459.72x = 5,188.84 × 1,119.94
  4. Step 4: Simplify right side
    3,459.72x = 5,811,189.47
  5. Step 5: Solve for x
    x = 5,811,189.47/3,459.72
  6. Step 6: Final answer
    x = 1,679.67

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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.