Home / 4,190.79-5,782.98-2,422.38

Finding the Fourth Proportional to 4,190.79, 5,782.98 and 2,422.38

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Solution

The fourth proportional to 4,190.79, 5,782.98 and 2,422.38 is: 3,342.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.79 : 5,782.98 = 2,422.38 : x
  2. Step 2: Convert to fraction form
    4,190.79/5,782.98 = 2,422.38/x
  3. Step 3: Cross multiply
    4,190.79x = 5,782.98 × 2,422.38
  4. Step 4: Simplify right side
    4,190.79x = 14,008,575.09
  5. Step 5: Solve for x
    x = 14,008,575.09/4,190.79
  6. Step 6: Final answer
    x = 3,342.71

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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.