Home / 1,972.45-2,962.71-1,906.84

Finding the Fourth Proportional to 1,972.45, 2,962.71 and 1,906.84

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Solution

The fourth proportional to 1,972.45, 2,962.71 and 1,906.84 is: 2,864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.45 : 2,962.71 = 1,906.84 : x
  2. Step 2: Convert to fraction form
    1,972.45/2,962.71 = 1,906.84/x
  3. Step 3: Cross multiply
    1,972.45x = 2,962.71 × 1,906.84
  4. Step 4: Simplify right side
    1,972.45x = 5,649,413.94
  5. Step 5: Solve for x
    x = 5,649,413.94/1,972.45
  6. Step 6: Final answer
    x = 2,864.16

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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.