Home / 2,640.43-3,641.38-2,267.29

Finding the Fourth Proportional to 2,640.43, 3,641.38 and 2,267.29

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Solution

The fourth proportional to 2,640.43, 3,641.38 and 2,267.29 is: 3,126.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.43 : 3,641.38 = 2,267.29 : x
  2. Step 2: Convert to fraction form
    2,640.43/3,641.38 = 2,267.29/x
  3. Step 3: Cross multiply
    2,640.43x = 3,641.38 × 2,267.29
  4. Step 4: Simplify right side
    2,640.43x = 8,256,064.46
  5. Step 5: Solve for x
    x = 8,256,064.46/2,640.43
  6. Step 6: Final answer
    x = 3,126.79

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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.