Home / 7,952.61-11,929.59-2,109.15

Finding the Fourth Proportional to 7,952.61, 11,929.59 and 2,109.15

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Solution

The fourth proportional to 7,952.61, 11,929.59 and 2,109.15 is: 3,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,952.61 : 11,929.59 = 2,109.15 : x
  2. Step 2: Convert to fraction form
    7,952.61/11,929.59 = 2,109.15/x
  3. Step 3: Cross multiply
    7,952.61x = 11,929.59 × 2,109.15
  4. Step 4: Simplify right side
    7,952.61x = 25,161,224.55
  5. Step 5: Solve for x
    x = 25,161,224.55/7,952.61
  6. Step 6: Final answer
    x = 3,163.90

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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.