Home / 4,922.78-7,381.60-2,422.91

Finding the Fourth Proportional to 4,922.78, 7,381.60 and 2,422.91

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Solution

The fourth proportional to 4,922.78, 7,381.60 and 2,422.91 is: 3,633.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,922.78 : 7,381.60 = 2,422.91 : x
  2. Step 2: Convert to fraction form
    4,922.78/7,381.60 = 2,422.91/x
  3. Step 3: Cross multiply
    4,922.78x = 7,381.60 × 2,422.91
  4. Step 4: Simplify right side
    4,922.78x = 17,884,964.85
  5. Step 5: Solve for x
    x = 17,884,964.85/4,922.78
  6. Step 6: Final answer
    x = 3,633.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.