Home / 3,940.86-5,441.05-2,451.07

Finding the Fourth Proportional to 3,940.86, 5,441.05 and 2,451.07

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Solution

The fourth proportional to 3,940.86, 5,441.05 and 2,451.07 is: 3,384.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.86 : 5,441.05 = 2,451.07 : x
  2. Step 2: Convert to fraction form
    3,940.86/5,441.05 = 2,451.07/x
  3. Step 3: Cross multiply
    3,940.86x = 5,441.05 × 2,451.07
  4. Step 4: Simplify right side
    3,940.86x = 13,336,394.42
  5. Step 5: Solve for x
    x = 13,336,394.42/3,940.86
  6. Step 6: Final answer
    x = 3,384.13

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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.