Home / 2,631.98-3,929.30-2,340.38

Finding the Fourth Proportional to 2,631.98, 3,929.30 and 2,340.38

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Solution

The fourth proportional to 2,631.98, 3,929.30 and 2,340.38 is: 3,493.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.98 : 3,929.30 = 2,340.38 : x
  2. Step 2: Convert to fraction form
    2,631.98/3,929.30 = 2,340.38/x
  3. Step 3: Cross multiply
    2,631.98x = 3,929.30 × 2,340.38
  4. Step 4: Simplify right side
    2,631.98x = 9,196,023.79
  5. Step 5: Solve for x
    x = 9,196,023.79/2,631.98
  6. Step 6: Final answer
    x = 3,493.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.