Home / 3,940.25-5,435.91-2,614.68

Finding the Fourth Proportional to 3,940.25, 5,435.91 and 2,614.68

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Solution

The fourth proportional to 3,940.25, 5,435.91 and 2,614.68 is: 3,607.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.25 : 5,435.91 = 2,614.68 : x
  2. Step 2: Convert to fraction form
    3,940.25/5,435.91 = 2,614.68/x
  3. Step 3: Cross multiply
    3,940.25x = 5,435.91 × 2,614.68
  4. Step 4: Simplify right side
    3,940.25x = 14,213,165.16
  5. Step 5: Solve for x
    x = 14,213,165.16/3,940.25
  6. Step 6: Final answer
    x = 3,607.18

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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.