Home / 7,681.07-11,521.20-2,486.54

Finding the Fourth Proportional to 7,681.07, 11,521.20 and 2,486.54

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Solution

The fourth proportional to 7,681.07, 11,521.20 and 2,486.54 is: 3,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.07 : 11,521.20 = 2,486.54 : x
  2. Step 2: Convert to fraction form
    7,681.07/11,521.20 = 2,486.54/x
  3. Step 3: Cross multiply
    7,681.07x = 11,521.20 × 2,486.54
  4. Step 4: Simplify right side
    7,681.07x = 28,647,924.65
  5. Step 5: Solve for x
    x = 28,647,924.65/7,681.07
  6. Step 6: Final answer
    x = 3,729.68

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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.