Home / 3,620.25-5,426.28-1,668.42

Finding the Fourth Proportional to 3,620.25, 5,426.28 and 1,668.42

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Solution

The fourth proportional to 3,620.25, 5,426.28 and 1,668.42 is: 2,500.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.25 : 5,426.28 = 1,668.42 : x
  2. Step 2: Convert to fraction form
    3,620.25/5,426.28 = 1,668.42/x
  3. Step 3: Cross multiply
    3,620.25x = 5,426.28 × 1,668.42
  4. Step 4: Simplify right side
    3,620.25x = 9,053,314.08
  5. Step 5: Solve for x
    x = 9,053,314.08/3,620.25
  6. Step 6: Final answer
    x = 2,500.74

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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.