Home / 3,387.09-5,080.68-922.14

Finding the Fourth Proportional to 3,387.09, 5,080.68 and 922.14

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Solution

The fourth proportional to 3,387.09, 5,080.68 and 922.14 is: 1,383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.09 : 5,080.68 = 922.14 : x
  2. Step 2: Convert to fraction form
    3,387.09/5,080.68 = 922.14/x
  3. Step 3: Cross multiply
    3,387.09x = 5,080.68 × 922.14
  4. Step 4: Simplify right side
    3,387.09x = 4,685,098.26
  5. Step 5: Solve for x
    x = 4,685,098.26/3,387.09
  6. Step 6: Final answer
    x = 1,383.22

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1.5x scale

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.