Home / 5,007.12-7,507.50-2,665.68

Finding the Fourth Proportional to 5,007.12, 7,507.50 and 2,665.68

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Solution

The fourth proportional to 5,007.12, 7,507.50 and 2,665.68 is: 3,996.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.12 : 7,507.50 = 2,665.68 : x
  2. Step 2: Convert to fraction form
    5,007.12/7,507.50 = 2,665.68/x
  3. Step 3: Cross multiply
    5,007.12x = 7,507.50 × 2,665.68
  4. Step 4: Simplify right side
    5,007.12x = 20,012,592.60
  5. Step 5: Solve for x
    x = 20,012,592.60/5,007.12
  6. Step 6: Final answer
    x = 3,996.83

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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.