Home / 4,191.72-5,782.78-2,422.28

Finding the Fourth Proportional to 4,191.72, 5,782.78 and 2,422.28

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Solution

The fourth proportional to 4,191.72, 5,782.78 and 2,422.28 is: 3,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.72 : 5,782.78 = 2,422.28 : x
  2. Step 2: Convert to fraction form
    4,191.72/5,782.78 = 2,422.28/x
  3. Step 3: Cross multiply
    4,191.72x = 5,782.78 × 2,422.28
  4. Step 4: Simplify right side
    4,191.72x = 14,007,512.34
  5. Step 5: Solve for x
    x = 14,007,512.34/4,191.72
  6. Step 6: Final answer
    x = 3,341.71

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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.