Home / 3,021.72-4,541.51-2,939.91

Finding the Fourth Proportional to 3,021.72, 4,541.51 and 2,939.91

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Solution

The fourth proportional to 3,021.72, 4,541.51 and 2,939.91 is: 4,418.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.72 : 4,541.51 = 2,939.91 : x
  2. Step 2: Convert to fraction form
    3,021.72/4,541.51 = 2,939.91/x
  3. Step 3: Cross multiply
    3,021.72x = 4,541.51 × 2,939.91
  4. Step 4: Simplify right side
    3,021.72x = 13,351,630.66
  5. Step 5: Solve for x
    x = 13,351,630.66/3,021.72
  6. Step 6: Final answer
    x = 4,418.55

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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.