Home / 2,851.79-4,278.69-2,036.43

Finding the Fourth Proportional to 2,851.79, 4,278.69 and 2,036.43

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Solution

The fourth proportional to 2,851.79, 4,278.69 and 2,036.43 is: 3,055.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.79 : 4,278.69 = 2,036.43 : x
  2. Step 2: Convert to fraction form
    2,851.79/4,278.69 = 2,036.43/x
  3. Step 3: Cross multiply
    2,851.79x = 4,278.69 × 2,036.43
  4. Step 4: Simplify right side
    2,851.79x = 8,713,252.68
  5. Step 5: Solve for x
    x = 8,713,252.68/2,851.79
  6. Step 6: Final answer
    x = 3,055.37

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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.