Home / 2,851.97-4,274.98-1,389.11

Finding the Fourth Proportional to 2,851.97, 4,274.98 and 1,389.11

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Solution

The fourth proportional to 2,851.97, 4,274.98 and 1,389.11 is: 2,082.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.97 : 4,274.98 = 1,389.11 : x
  2. Step 2: Convert to fraction form
    2,851.97/4,274.98 = 1,389.11/x
  3. Step 3: Cross multiply
    2,851.97x = 4,274.98 × 1,389.11
  4. Step 4: Simplify right side
    2,851.97x = 5,938,392.62
  5. Step 5: Solve for x
    x = 5,938,392.62/2,851.97
  6. Step 6: Final answer
    x = 2,082.21

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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.