Home / 4,042.78-5,579.28-2,696.08

Finding the Fourth Proportional to 4,042.78, 5,579.28 and 2,696.08

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Solution

The fourth proportional to 4,042.78, 5,579.28 and 2,696.08 is: 3,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,042.78 : 5,579.28 = 2,696.08 : x
  2. Step 2: Convert to fraction form
    4,042.78/5,579.28 = 2,696.08/x
  3. Step 3: Cross multiply
    4,042.78x = 5,579.28 × 2,696.08
  4. Step 4: Simplify right side
    4,042.78x = 15,042,185.22
  5. Step 5: Solve for x
    x = 15,042,185.22/4,042.78
  6. Step 6: Final answer
    x = 3,720.75

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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.