Home / 6,211.91-9,320.99-3,871.32

Finding the Fourth Proportional to 6,211.91, 9,320.99 and 3,871.32

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Solution

The fourth proportional to 6,211.91, 9,320.99 and 3,871.32 is: 5,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.91 : 9,320.99 = 3,871.32 : x
  2. Step 2: Convert to fraction form
    6,211.91/9,320.99 = 3,871.32/x
  3. Step 3: Cross multiply
    6,211.91x = 9,320.99 × 3,871.32
  4. Step 4: Simplify right side
    6,211.91x = 36,084,515.65
  5. Step 5: Solve for x
    x = 36,084,515.65/6,211.91
  6. Step 6: Final answer
    x = 5,808.93

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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.