Home / 3,393.82-4,685.76-2,119.64

Finding the Fourth Proportional to 3,393.82, 4,685.76 and 2,119.64

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Solution

The fourth proportional to 3,393.82, 4,685.76 and 2,119.64 is: 2,926.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.82 : 4,685.76 = 2,119.64 : x
  2. Step 2: Convert to fraction form
    3,393.82/4,685.76 = 2,119.64/x
  3. Step 3: Cross multiply
    3,393.82x = 4,685.76 × 2,119.64
  4. Step 4: Simplify right side
    3,393.82x = 9,932,124.33
  5. Step 5: Solve for x
    x = 9,932,124.33/3,393.82
  6. Step 6: Final answer
    x = 2,926.53

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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.