Home / 5,007.12-7,507.52-1,719.92

Finding the Fourth Proportional to 5,007.12, 7,507.52 and 1,719.92

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Solution

The fourth proportional to 5,007.12, 7,507.52 and 1,719.92 is: 2,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.12 : 7,507.52 = 1,719.92 : x
  2. Step 2: Convert to fraction form
    5,007.12/7,507.52 = 1,719.92/x
  3. Step 3: Cross multiply
    5,007.12x = 7,507.52 × 1,719.92
  4. Step 4: Simplify right side
    5,007.12x = 12,912,333.80
  5. Step 5: Solve for x
    x = 12,912,333.80/5,007.12
  6. Step 6: Final answer
    x = 2,578.79

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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.