Home / 7,786.48-11,680.08-2,853.76

Finding the Fourth Proportional to 7,786.48, 11,680.08 and 2,853.76

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Solution

The fourth proportional to 7,786.48, 11,680.08 and 2,853.76 is: 4,280.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.48 : 11,680.08 = 2,853.76 : x
  2. Step 2: Convert to fraction form
    7,786.48/11,680.08 = 2,853.76/x
  3. Step 3: Cross multiply
    7,786.48x = 11,680.08 × 2,853.76
  4. Step 4: Simplify right side
    7,786.48x = 33,332,145.10
  5. Step 5: Solve for x
    x = 33,332,145.10/7,786.48
  6. Step 6: Final answer
    x = 4,280.77

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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.