Home / 4,140.62-5,714.69-3,185.63

Finding the Fourth Proportional to 4,140.62, 5,714.69 and 3,185.63

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Solution

The fourth proportional to 4,140.62, 5,714.69 and 3,185.63 is: 4,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.62 : 5,714.69 = 3,185.63 : x
  2. Step 2: Convert to fraction form
    4,140.62/5,714.69 = 3,185.63/x
  3. Step 3: Cross multiply
    4,140.62x = 5,714.69 × 3,185.63
  4. Step 4: Simplify right side
    4,140.62x = 18,204,843.40
  5. Step 5: Solve for x
    x = 18,204,843.40/4,140.62
  6. Step 6: Final answer
    x = 4,396.65

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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.