Home / 5,311.71-7,958.70-3,749.15

Finding the Fourth Proportional to 5,311.71, 7,958.70 and 3,749.15

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Solution

The fourth proportional to 5,311.71, 7,958.70 and 3,749.15 is: 5,617.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.71 : 7,958.70 = 3,749.15 : x
  2. Step 2: Convert to fraction form
    5,311.71/7,958.70 = 3,749.15/x
  3. Step 3: Cross multiply
    5,311.71x = 7,958.70 × 3,749.15
  4. Step 4: Simplify right side
    5,311.71x = 29,838,301.57
  5. Step 5: Solve for x
    x = 29,838,301.57/5,311.71
  6. Step 6: Final answer
    x = 5,617.46

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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.