Home / 2,847.06-3,929.28-1,668.09

Finding the Fourth Proportional to 2,847.06, 3,929.28 and 1,668.09

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Solution

The fourth proportional to 2,847.06, 3,929.28 and 1,668.09 is: 2,302.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.06 : 3,929.28 = 1,668.09 : x
  2. Step 2: Convert to fraction form
    2,847.06/3,929.28 = 1,668.09/x
  3. Step 3: Cross multiply
    2,847.06x = 3,929.28 × 1,668.09
  4. Step 4: Simplify right side
    2,847.06x = 6,554,392.68
  5. Step 5: Solve for x
    x = 6,554,392.68/2,847.06
  6. Step 6: Final answer
    x = 2,302.16

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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.