Home / 5,118.85-7,061.21-3,022.57

Finding the Fourth Proportional to 5,118.85, 7,061.21 and 3,022.57

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Solution

The fourth proportional to 5,118.85, 7,061.21 and 3,022.57 is: 4,169.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.85 : 7,061.21 = 3,022.57 : x
  2. Step 2: Convert to fraction form
    5,118.85/7,061.21 = 3,022.57/x
  3. Step 3: Cross multiply
    5,118.85x = 7,061.21 × 3,022.57
  4. Step 4: Simplify right side
    5,118.85x = 21,342,986.40
  5. Step 5: Solve for x
    x = 21,342,986.40/5,118.85
  6. Step 6: Final answer
    x = 4,169.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.