Home / 7,721.83-11,582.75-3,103.75

Finding the Fourth Proportional to 7,721.83, 11,582.75 and 3,103.75

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Solution

The fourth proportional to 7,721.83, 11,582.75 and 3,103.75 is: 4,655.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.83 : 11,582.75 = 3,103.75 : x
  2. Step 2: Convert to fraction form
    7,721.83/11,582.75 = 3,103.75/x
  3. Step 3: Cross multiply
    7,721.83x = 11,582.75 × 3,103.75
  4. Step 4: Simplify right side
    7,721.83x = 35,949,944.79
  5. Step 5: Solve for x
    x = 35,949,944.79/7,721.83
  6. Step 6: Final answer
    x = 4,655.63

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Double scale
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Similar ratio
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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.