Home / 7,620.79-11,431.18-3,235.17

Finding the Fourth Proportional to 7,620.79, 11,431.18 and 3,235.17

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Solution

The fourth proportional to 7,620.79, 11,431.18 and 3,235.17 is: 4,852.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.79 : 11,431.18 = 3,235.17 : x
  2. Step 2: Convert to fraction form
    7,620.79/11,431.18 = 3,235.17/x
  3. Step 3: Cross multiply
    7,620.79x = 11,431.18 × 3,235.17
  4. Step 4: Simplify right side
    7,620.79x = 36,981,737.27
  5. Step 5: Solve for x
    x = 36,981,737.27/7,620.79
  6. Step 6: Final answer
    x = 4,852.75

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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.