Home / 2,930.78-4,044.52-1,604.61

Finding the Fourth Proportional to 2,930.78, 4,044.52 and 1,604.61

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Solution

The fourth proportional to 2,930.78, 4,044.52 and 1,604.61 is: 2,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.78 : 4,044.52 = 1,604.61 : x
  2. Step 2: Convert to fraction form
    2,930.78/4,044.52 = 1,604.61/x
  3. Step 3: Cross multiply
    2,930.78x = 4,044.52 × 1,604.61
  4. Step 4: Simplify right side
    2,930.78x = 6,489,857.01
  5. Step 5: Solve for x
    x = 6,489,857.01/2,930.78
  6. Step 6: Final answer
    x = 2,214.38

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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.