Home / 3,913.27-5,868.70-1,140.14

Finding the Fourth Proportional to 3,913.27, 5,868.70 and 1,140.14

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Solution

The fourth proportional to 3,913.27, 5,868.70 and 1,140.14 is: 1,709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.27 : 5,868.70 = 1,140.14 : x
  2. Step 2: Convert to fraction form
    3,913.27/5,868.70 = 1,140.14/x
  3. Step 3: Cross multiply
    3,913.27x = 5,868.70 × 1,140.14
  4. Step 4: Simplify right side
    3,913.27x = 6,691,139.62
  5. Step 5: Solve for x
    x = 6,691,139.62/3,913.27
  6. Step 6: Final answer
    x = 1,709.86

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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.