Home / 3,719.27-5,575.33-1,378.64

Finding the Fourth Proportional to 3,719.27, 5,575.33 and 1,378.64

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Solution

The fourth proportional to 3,719.27, 5,575.33 and 1,378.64 is: 2,066.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.27 : 5,575.33 = 1,378.64 : x
  2. Step 2: Convert to fraction form
    3,719.27/5,575.33 = 1,378.64/x
  3. Step 3: Cross multiply
    3,719.27x = 5,575.33 × 1,378.64
  4. Step 4: Simplify right side
    3,719.27x = 7,686,383.44
  5. Step 5: Solve for x
    x = 7,686,383.44/3,719.27
  6. Step 6: Final answer
    x = 2,066.64

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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.