Home / 3,118.42-4,678.57-1,144.02

Finding the Fourth Proportional to 3,118.42, 4,678.57 and 1,144.02

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Solution

The fourth proportional to 3,118.42, 4,678.57 and 1,144.02 is: 1,716.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.42 : 4,678.57 = 1,144.02 : x
  2. Step 2: Convert to fraction form
    3,118.42/4,678.57 = 1,144.02/x
  3. Step 3: Cross multiply
    3,118.42x = 4,678.57 × 1,144.02
  4. Step 4: Simplify right side
    3,118.42x = 5,352,377.65
  5. Step 5: Solve for x
    x = 5,352,377.65/3,118.42
  6. Step 6: Final answer
    x = 1,716.37

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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.