Home / 7,768.92-11,649.96-2,221.04

Finding the Fourth Proportional to 7,768.92, 11,649.96 and 2,221.04

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Solution

The fourth proportional to 7,768.92, 11,649.96 and 2,221.04 is: 3,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768.92 : 11,649.96 = 2,221.04 : x
  2. Step 2: Convert to fraction form
    7,768.92/11,649.96 = 2,221.04/x
  3. Step 3: Cross multiply
    7,768.92x = 11,649.96 × 2,221.04
  4. Step 4: Simplify right side
    7,768.92x = 25,875,027.16
  5. Step 5: Solve for x
    x = 25,875,027.16/7,768.92
  6. Step 6: Final answer
    x = 3,330.58

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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.