Home / 4,188.12-5,780.40-2,771.83

Finding the Fourth Proportional to 4,188.12, 5,780.40 and 2,771.83

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Solution

The fourth proportional to 4,188.12, 5,780.40 and 2,771.83 is: 3,825.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.12 : 5,780.40 = 2,771.83 : x
  2. Step 2: Convert to fraction form
    4,188.12/5,780.40 = 2,771.83/x
  3. Step 3: Cross multiply
    4,188.12x = 5,780.40 × 2,771.83
  4. Step 4: Simplify right side
    4,188.12x = 16,022,286.13
  5. Step 5: Solve for x
    x = 16,022,286.13/4,188.12
  6. Step 6: Final answer
    x = 3,825.65

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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.