Home / 3,769.28-5,656.51-1,691.60

Finding the Fourth Proportional to 3,769.28, 5,656.51 and 1,691.60

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Solution

The fourth proportional to 3,769.28, 5,656.51 and 1,691.60 is: 2,538.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,769.28 : 5,656.51 = 1,691.60 : x
  2. Step 2: Convert to fraction form
    3,769.28/5,656.51 = 1,691.60/x
  3. Step 3: Cross multiply
    3,769.28x = 5,656.51 × 1,691.60
  4. Step 4: Simplify right side
    3,769.28x = 9,568,569.12
  5. Step 5: Solve for x
    x = 9,568,569.12/3,769.28
  6. Step 6: Final answer
    x = 2,538.57

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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.