Home / 5,147.55-7,719.84-2,513.43

Finding the Fourth Proportional to 5,147.55, 7,719.84 and 2,513.43

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Solution

The fourth proportional to 5,147.55, 7,719.84 and 2,513.43 is: 3,769.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.55 : 7,719.84 = 2,513.43 : x
  2. Step 2: Convert to fraction form
    5,147.55/7,719.84 = 2,513.43/x
  3. Step 3: Cross multiply
    5,147.55x = 7,719.84 × 2,513.43
  4. Step 4: Simplify right side
    5,147.55x = 19,403,277.45
  5. Step 5: Solve for x
    x = 19,403,277.45/5,147.55
  6. Step 6: Final answer
    x = 3,769.42

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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.