Home / 3,719.72-5,131.08-2,147.52

Finding the Fourth Proportional to 3,719.72, 5,131.08 and 2,147.52

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Solution

The fourth proportional to 3,719.72, 5,131.08 and 2,147.52 is: 2,962.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.72 : 5,131.08 = 2,147.52 : x
  2. Step 2: Convert to fraction form
    3,719.72/5,131.08 = 2,147.52/x
  3. Step 3: Cross multiply
    3,719.72x = 5,131.08 × 2,147.52
  4. Step 4: Simplify right side
    3,719.72x = 11,019,096.92
  5. Step 5: Solve for x
    x = 11,019,096.92/3,719.72
  6. Step 6: Final answer
    x = 2,962.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.