Home / 5,145.53-7,718.27-1,249.94

Finding the Fourth Proportional to 5,145.53, 7,718.27 and 1,249.94

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Solution

The fourth proportional to 5,145.53, 7,718.27 and 1,249.94 is: 1,874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.53 : 7,718.27 = 1,249.94 : x
  2. Step 2: Convert to fraction form
    5,145.53/7,718.27 = 1,249.94/x
  3. Step 3: Cross multiply
    5,145.53x = 7,718.27 × 1,249.94
  4. Step 4: Simplify right side
    5,145.53x = 9,647,387.45
  5. Step 5: Solve for x
    x = 9,647,387.45/5,145.53
  6. Step 6: Final answer
    x = 1,874.91

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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.