Home / 3,792.87-5,685.66-2,801.43

Finding the Fourth Proportional to 3,792.87, 5,685.66 and 2,801.43

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Solution

The fourth proportional to 3,792.87, 5,685.66 and 2,801.43 is: 4,199.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792.87 : 5,685.66 = 2,801.43 : x
  2. Step 2: Convert to fraction form
    3,792.87/5,685.66 = 2,801.43/x
  3. Step 3: Cross multiply
    3,792.87x = 5,685.66 × 2,801.43
  4. Step 4: Simplify right side
    3,792.87x = 15,927,978.49
  5. Step 5: Solve for x
    x = 15,927,978.49/3,792.87
  6. Step 6: Final answer
    x = 4,199.45

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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.