Home / 3,912.53-5,869.08-1,139.22

Finding the Fourth Proportional to 3,912.53, 5,869.08 and 1,139.22

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Solution

The fourth proportional to 3,912.53, 5,869.08 and 1,139.22 is: 1,708.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.53 : 5,869.08 = 1,139.22 : x
  2. Step 2: Convert to fraction form
    3,912.53/5,869.08 = 1,139.22/x
  3. Step 3: Cross multiply
    3,912.53x = 5,869.08 × 1,139.22
  4. Step 4: Simplify right side
    3,912.53x = 6,686,173.32
  5. Step 5: Solve for x
    x = 6,686,173.32/3,912.53
  6. Step 6: Final answer
    x = 1,708.92

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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.