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Finding the Fourth Proportional to 2,371, 3,556.35 and 727.42

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Solution

The fourth proportional to 2,371, 3,556.35 and 727.42 is: 1,091.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,371 : 3,556.35 = 727.42 : x
  2. Step 2: Convert to fraction form
    2,371/3,556.35 = 727.42/x
  3. Step 3: Cross multiply
    2,371x = 3,556.35 × 727.42
  4. Step 4: Simplify right side
    2,371x = 2,586,960.12
  5. Step 5: Solve for x
    x = 2,586,960.12/2,371
  6. Step 6: Final answer
    x = 1,091.08

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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.