Home / 1,934.20-2,898.87-1,778.68

Finding the Fourth Proportional to 1,934.20, 2,898.87 and 1,778.68

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Solution

The fourth proportional to 1,934.20, 2,898.87 and 1,778.68 is: 2,665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.20 : 2,898.87 = 1,778.68 : x
  2. Step 2: Convert to fraction form
    1,934.20/2,898.87 = 1,778.68/x
  3. Step 3: Cross multiply
    1,934.20x = 2,898.87 × 1,778.68
  4. Step 4: Simplify right side
    1,934.20x = 5,156,162.09
  5. Step 5: Solve for x
    x = 5,156,162.09/1,934.20
  6. Step 6: Final answer
    x = 2,665.79

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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.