Home / 7,786.92-11,678.64-2,240.28

Finding the Fourth Proportional to 7,786.92, 11,678.64 and 2,240.28

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Solution

The fourth proportional to 7,786.92, 11,678.64 and 2,240.28 is: 3,359.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.92 : 11,678.64 = 2,240.28 : x
  2. Step 2: Convert to fraction form
    7,786.92/11,678.64 = 2,240.28/x
  3. Step 3: Cross multiply
    7,786.92x = 11,678.64 × 2,240.28
  4. Step 4: Simplify right side
    7,786.92x = 26,163,423.62
  5. Step 5: Solve for x
    x = 26,163,423.62/7,786.92
  6. Step 6: Final answer
    x = 3,359.92

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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.