Home / 7,936.99-11,901.63-2,389.30

Finding the Fourth Proportional to 7,936.99, 11,901.63 and 2,389.30

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Solution

The fourth proportional to 7,936.99, 11,901.63 and 2,389.30 is: 3,582.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.99 : 11,901.63 = 2,389.30 : x
  2. Step 2: Convert to fraction form
    7,936.99/11,901.63 = 2,389.30/x
  3. Step 3: Cross multiply
    7,936.99x = 11,901.63 × 2,389.30
  4. Step 4: Simplify right side
    7,936.99x = 28,436,543.76
  5. Step 5: Solve for x
    x = 28,436,543.76/7,936.99
  6. Step 6: Final answer
    x = 3,582.79

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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.