Home / 3,853.55-5,317.92-2,175.02

Finding the Fourth Proportional to 3,853.55, 5,317.92 and 2,175.02

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Solution

The fourth proportional to 3,853.55, 5,317.92 and 2,175.02 is: 3,001.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.55 : 5,317.92 = 2,175.02 : x
  2. Step 2: Convert to fraction form
    3,853.55/5,317.92 = 2,175.02/x
  3. Step 3: Cross multiply
    3,853.55x = 5,317.92 × 2,175.02
  4. Step 4: Simplify right side
    3,853.55x = 11,566,571.48
  5. Step 5: Solve for x
    x = 11,566,571.48/3,853.55
  6. Step 6: Final answer
    x = 3,001.54

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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.