Home / 2,455.24-3,683.79-1,139.62

Finding the Fourth Proportional to 2,455.24, 3,683.79 and 1,139.62

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Solution

The fourth proportional to 2,455.24, 3,683.79 and 1,139.62 is: 1,709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.24 : 3,683.79 = 1,139.62 : x
  2. Step 2: Convert to fraction form
    2,455.24/3,683.79 = 1,139.62/x
  3. Step 3: Cross multiply
    2,455.24x = 3,683.79 × 1,139.62
  4. Step 4: Simplify right side
    2,455.24x = 4,198,120.76
  5. Step 5: Solve for x
    x = 4,198,120.76/2,455.24
  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.