Home / 2,791.13-3,853.55-2,491.86

Finding the Fourth Proportional to 2,791.13, 3,853.55 and 2,491.86

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Solution

The fourth proportional to 2,791.13, 3,853.55 and 2,491.86 is: 3,440.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.13 : 3,853.55 = 2,491.86 : x
  2. Step 2: Convert to fraction form
    2,791.13/3,853.55 = 2,491.86/x
  3. Step 3: Cross multiply
    2,791.13x = 3,853.55 × 2,491.86
  4. Step 4: Simplify right side
    2,791.13x = 9,602,494.64
  5. Step 5: Solve for x
    x = 9,602,494.64/2,791.13
  6. Step 6: Final answer
    x = 3,440.36

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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.