Home / 5,168.80-7,132.99-3,072.52

Finding the Fourth Proportional to 5,168.80, 7,132.99 and 3,072.52

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Solution

The fourth proportional to 5,168.80, 7,132.99 and 3,072.52 is: 4,240.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.80 : 7,132.99 = 3,072.52 : x
  2. Step 2: Convert to fraction form
    5,168.80/7,132.99 = 3,072.52/x
  3. Step 3: Cross multiply
    5,168.80x = 7,132.99 × 3,072.52
  4. Step 4: Simplify right side
    5,168.80x = 21,916,212.67
  5. Step 5: Solve for x
    x = 21,916,212.67/5,168.80
  6. Step 6: Final answer
    x = 4,240.10

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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.