Home / 7,639.07-11,462.81-3,199.92

Finding the Fourth Proportional to 7,639.07, 11,462.81 and 3,199.92

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Solution

The fourth proportional to 7,639.07, 11,462.81 and 3,199.92 is: 4,801.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.07 : 11,462.81 = 3,199.92 : x
  2. Step 2: Convert to fraction form
    7,639.07/11,462.81 = 3,199.92/x
  3. Step 3: Cross multiply
    7,639.07x = 11,462.81 × 3,199.92
  4. Step 4: Simplify right side
    7,639.07x = 36,680,058.98
  5. Step 5: Solve for x
    x = 36,680,058.98/7,639.07
  6. Step 6: Final answer
    x = 4,801.64

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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.