Home / 3,425.60-5,135.40-2,326.40

Finding the Fourth Proportional to 3,425.60, 5,135.40 and 2,326.40

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Solution

The fourth proportional to 3,425.60, 5,135.40 and 2,326.40 is: 3,487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.60 : 5,135.40 = 2,326.40 : x
  2. Step 2: Convert to fraction form
    3,425.60/5,135.40 = 2,326.40/x
  3. Step 3: Cross multiply
    3,425.60x = 5,135.40 × 2,326.40
  4. Step 4: Simplify right side
    3,425.60x = 11,946,994.56
  5. Step 5: Solve for x
    x = 11,946,994.56/3,425.60
  6. Step 6: Final answer
    x = 3,487.56

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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.