Home / 1,949.58-2,919.78-1,691.70

Finding the Fourth Proportional to 1,949.58, 2,919.78 and 1,691.70

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Solution

The fourth proportional to 1,949.58, 2,919.78 and 1,691.70 is: 2,533.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.58 : 2,919.78 = 1,691.70 : x
  2. Step 2: Convert to fraction form
    1,949.58/2,919.78 = 1,691.70/x
  3. Step 3: Cross multiply
    1,949.58x = 2,919.78 × 1,691.70
  4. Step 4: Simplify right side
    1,949.58x = 4,939,391.83
  5. Step 5: Solve for x
    x = 4,939,391.83/1,949.58
  6. Step 6: Final answer
    x = 2,533.57

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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.