Home / 7,952.40-11,929.14-2,108.79

Finding the Fourth Proportional to 7,952.40, 11,929.14 and 2,108.79

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Solution

The fourth proportional to 7,952.40, 11,929.14 and 2,108.79 is: 3,163.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,952.40 : 11,929.14 = 2,108.79 : x
  2. Step 2: Convert to fraction form
    7,952.40/11,929.14 = 2,108.79/x
  3. Step 3: Cross multiply
    7,952.40x = 11,929.14 × 2,108.79
  4. Step 4: Simplify right side
    7,952.40x = 25,156,051.14
  5. Step 5: Solve for x
    x = 25,156,051.14/7,952.40
  6. Step 6: Final answer
    x = 3,163.33

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1.5x scale

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.