Home / 2,791.22-3,853.14-2,045.21

Finding the Fourth Proportional to 2,791.22, 3,853.14 and 2,045.21

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Solution

The fourth proportional to 2,791.22, 3,853.14 and 2,045.21 is: 2,823.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.22 : 3,853.14 = 2,045.21 : x
  2. Step 2: Convert to fraction form
    2,791.22/3,853.14 = 2,045.21/x
  3. Step 3: Cross multiply
    2,791.22x = 3,853.14 × 2,045.21
  4. Step 4: Simplify right side
    2,791.22x = 7,880,480.46
  5. Step 5: Solve for x
    x = 7,880,480.46/2,791.22
  6. Step 6: Final answer
    x = 2,823.31

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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.