Home / 3,425.96-5,143.80-2,123.48

Finding the Fourth Proportional to 3,425.96, 5,143.80 and 2,123.48

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Solution

The fourth proportional to 3,425.96, 5,143.80 and 2,123.48 is: 3,188.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.96 : 5,143.80 = 2,123.48 : x
  2. Step 2: Convert to fraction form
    3,425.96/5,143.80 = 2,123.48/x
  3. Step 3: Cross multiply
    3,425.96x = 5,143.80 × 2,123.48
  4. Step 4: Simplify right side
    3,425.96x = 10,922,756.42
  5. Step 5: Solve for x
    x = 10,922,756.42/3,425.96
  6. Step 6: Final answer
    x = 3,188.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.