Home / 2,640.27-3,637.67-2,213.13

Finding the Fourth Proportional to 2,640.27, 3,637.67 and 2,213.13

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Solution

The fourth proportional to 2,640.27, 3,637.67 and 2,213.13 is: 3,049.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.27 : 3,637.67 = 2,213.13 : x
  2. Step 2: Convert to fraction form
    2,640.27/3,637.67 = 2,213.13/x
  3. Step 3: Cross multiply
    2,640.27x = 3,637.67 × 2,213.13
  4. Step 4: Simplify right side
    2,640.27x = 8,050,625.54
  5. Step 5: Solve for x
    x = 8,050,625.54/2,640.27
  6. Step 6: Final answer
    x = 3,049.17

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1.5x scale

Why These Related Problems?

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