Home / 2,847.92-3,929.25-1,668.98

Finding the Fourth Proportional to 2,847.92, 3,929.25 and 1,668.98

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Solution

The fourth proportional to 2,847.92, 3,929.25 and 1,668.98 is: 2,302.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.92 : 3,929.25 = 1,668.98 : x
  2. Step 2: Convert to fraction form
    2,847.92/3,929.25 = 1,668.98/x
  3. Step 3: Cross multiply
    2,847.92x = 3,929.25 × 1,668.98
  4. Step 4: Simplify right side
    2,847.92x = 6,557,839.67
  5. Step 5: Solve for x
    x = 6,557,839.67/2,847.92
  6. Step 6: Final answer
    x = 2,302.68

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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.