Home / 5,725.62-7,900.89-3,207.36

Finding the Fourth Proportional to 5,725.62, 7,900.89 and 3,207.36

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Solution

The fourth proportional to 5,725.62, 7,900.89 and 3,207.36 is: 4,425.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,725.62 : 7,900.89 = 3,207.36 : x
  2. Step 2: Convert to fraction form
    5,725.62/7,900.89 = 3,207.36/x
  3. Step 3: Cross multiply
    5,725.62x = 7,900.89 × 3,207.36
  4. Step 4: Simplify right side
    5,725.62x = 25,340,998.55
  5. Step 5: Solve for x
    x = 25,340,998.55/5,725.62
  6. Step 6: Final answer
    x = 4,425.90

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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.