Home / 4,185.20-5,767.80-3,135.44

Finding the Fourth Proportional to 4,185.20, 5,767.80 and 3,135.44

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Solution

The fourth proportional to 4,185.20, 5,767.80 and 3,135.44 is: 4,321.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.20 : 5,767.80 = 3,135.44 : x
  2. Step 2: Convert to fraction form
    4,185.20/5,767.80 = 3,135.44/x
  3. Step 3: Cross multiply
    4,185.20x = 5,767.80 × 3,135.44
  4. Step 4: Simplify right side
    4,185.20x = 18,084,590.83
  5. Step 5: Solve for x
    x = 18,084,590.83/4,185.20
  6. Step 6: Final answer
    x = 4,321.08

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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.