Home / 5,209.94-7,190.55-2,972.54

Finding the Fourth Proportional to 5,209.94, 7,190.55 and 2,972.54

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Solution

The fourth proportional to 5,209.94, 7,190.55 and 2,972.54 is: 4,102.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.94 : 7,190.55 = 2,972.54 : x
  2. Step 2: Convert to fraction form
    5,209.94/7,190.55 = 2,972.54/x
  3. Step 3: Cross multiply
    5,209.94x = 7,190.55 × 2,972.54
  4. Step 4: Simplify right side
    5,209.94x = 21,374,186.89
  5. Step 5: Solve for x
    x = 21,374,186.89/5,209.94
  6. Step 6: Final answer
    x = 4,102.58

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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.