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Finding the Fourth Proportional to 2,379.78, 3,569.28 and 736.14

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Solution

The fourth proportional to 2,379.78, 3,569.28 and 736.14 is: 1,104.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.78 : 3,569.28 = 736.14 : x
  2. Step 2: Convert to fraction form
    2,379.78/3,569.28 = 736.14/x
  3. Step 3: Cross multiply
    2,379.78x = 3,569.28 × 736.14
  4. Step 4: Simplify right side
    2,379.78x = 2,627,489.78
  5. Step 5: Solve for x
    x = 2,627,489.78/2,379.78
  6. Step 6: Final answer
    x = 1,104.09

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1.5x scale

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.