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Finding the Fourth Proportional to 2,371.51, 3,556.99 and 640.27

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Solution

The fourth proportional to 2,371.51, 3,556.99 and 640.27 is: 960.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,371.51 : 3,556.99 = 640.27 : x
  2. Step 2: Convert to fraction form
    2,371.51/3,556.99 = 640.27/x
  3. Step 3: Cross multiply
    2,371.51x = 3,556.99 × 640.27
  4. Step 4: Simplify right side
    2,371.51x = 2,277,433.99
  5. Step 5: Solve for x
    x = 2,277,433.99/2,371.51
  6. Step 6: Final answer
    x = 960.33

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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.