Home / 3,943.16-5,443.82-2,618.68

Finding the Fourth Proportional to 3,943.16, 5,443.82 and 2,618.68

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Solution

The fourth proportional to 3,943.16, 5,443.82 and 2,618.68 is: 3,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.16 : 5,443.82 = 2,618.68 : x
  2. Step 2: Convert to fraction form
    3,943.16/5,443.82 = 2,618.68/x
  3. Step 3: Cross multiply
    3,943.16x = 5,443.82 × 2,618.68
  4. Step 4: Simplify right side
    3,943.16x = 14,255,622.56
  5. Step 5: Solve for x
    x = 14,255,622.56/3,943.16
  6. Step 6: Final answer
    x = 3,615.28

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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.