Home / 4,190.75-5,782.80-2,422.92

Finding the Fourth Proportional to 4,190.75, 5,782.80 and 2,422.92

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Solution

The fourth proportional to 4,190.75, 5,782.80 and 2,422.92 is: 3,343.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.75 : 5,782.80 = 2,422.92 : x
  2. Step 2: Convert to fraction form
    4,190.75/5,782.80 = 2,422.92/x
  3. Step 3: Cross multiply
    4,190.75x = 5,782.80 × 2,422.92
  4. Step 4: Simplify right side
    4,190.75x = 14,011,261.78
  5. Step 5: Solve for x
    x = 14,011,261.78/4,190.75
  6. Step 6: Final answer
    x = 3,343.38

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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.