Home / 5,029.79-6,940.55-2,791.22

Finding the Fourth Proportional to 5,029.79, 6,940.55 and 2,791.22

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Solution

The fourth proportional to 5,029.79, 6,940.55 and 2,791.22 is: 3,851.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,029.79 : 6,940.55 = 2,791.22 : x
  2. Step 2: Convert to fraction form
    5,029.79/6,940.55 = 2,791.22/x
  3. Step 3: Cross multiply
    5,029.79x = 6,940.55 × 2,791.22
  4. Step 4: Simplify right side
    5,029.79x = 19,372,574.25
  5. Step 5: Solve for x
    x = 19,372,574.25/5,029.79
  6. Step 6: Final answer
    x = 3,851.57

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1.5x scale

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.