Home / 3,944.76-5,916.39-1,311.87

Finding the Fourth Proportional to 3,944.76, 5,916.39 and 1,311.87

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Solution

The fourth proportional to 3,944.76, 5,916.39 and 1,311.87 is: 1,967.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944.76 : 5,916.39 = 1,311.87 : x
  2. Step 2: Convert to fraction form
    3,944.76/5,916.39 = 1,311.87/x
  3. Step 3: Cross multiply
    3,944.76x = 5,916.39 × 1,311.87
  4. Step 4: Simplify right side
    3,944.76x = 7,761,534.55
  5. Step 5: Solve for x
    x = 7,761,534.55/3,944.76
  6. Step 6: Final answer
    x = 1,967.56

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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.