Home / 5,197.73-7,172.90-2,839.93

Finding the Fourth Proportional to 5,197.73, 7,172.90 and 2,839.93

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Solution

The fourth proportional to 5,197.73, 7,172.90 and 2,839.93 is: 3,919.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.73 : 7,172.90 = 2,839.93 : x
  2. Step 2: Convert to fraction form
    5,197.73/7,172.90 = 2,839.93/x
  3. Step 3: Cross multiply
    5,197.73x = 7,172.90 × 2,839.93
  4. Step 4: Simplify right side
    5,197.73x = 20,370,501.77
  5. Step 5: Solve for x
    x = 20,370,501.77/5,197.73
  6. Step 6: Final answer
    x = 3,919.11

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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.