Home / 2,929.20-4,037.74-2,181.97

Finding the Fourth Proportional to 2,929.20, 4,037.74 and 2,181.97

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Solution

The fourth proportional to 2,929.20, 4,037.74 and 2,181.97 is: 3,007.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.20 : 4,037.74 = 2,181.97 : x
  2. Step 2: Convert to fraction form
    2,929.20/4,037.74 = 2,181.97/x
  3. Step 3: Cross multiply
    2,929.20x = 4,037.74 × 2,181.97
  4. Step 4: Simplify right side
    2,929.20x = 8,810,227.55
  5. Step 5: Solve for x
    x = 8,810,227.55/2,929.20
  6. Step 6: Final answer
    x = 3,007.72

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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.