Home / 3,719.09-5,575.19-1,377.79

Finding the Fourth Proportional to 3,719.09, 5,575.19 and 1,377.79

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Solution

The fourth proportional to 3,719.09, 5,575.19 and 1,377.79 is: 2,065.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.09 : 5,575.19 = 1,377.79 : x
  2. Step 2: Convert to fraction form
    3,719.09/5,575.19 = 1,377.79/x
  3. Step 3: Cross multiply
    3,719.09x = 5,575.19 × 1,377.79
  4. Step 4: Simplify right side
    3,719.09x = 7,681,441.03
  5. Step 5: Solve for x
    x = 7,681,441.03/3,719.09
  6. Step 6: Final answer
    x = 2,065.41

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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.