Home / 3,912.37-5,869.38-1,139.14

Finding the Fourth Proportional to 3,912.37, 5,869.38 and 1,139.14

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Solution

The fourth proportional to 3,912.37, 5,869.38 and 1,139.14 is: 1,708.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.37 : 5,869.38 = 1,139.14 : x
  2. Step 2: Convert to fraction form
    3,912.37/5,869.38 = 1,139.14/x
  3. Step 3: Cross multiply
    3,912.37x = 5,869.38 × 1,139.14
  4. Step 4: Simplify right side
    3,912.37x = 6,686,045.53
  5. Step 5: Solve for x
    x = 6,686,045.53/3,912.37
  6. Step 6: Final answer
    x = 1,708.95

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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.