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Finding the Fourth Proportional to 6,624.62, 9,141.99 and 3,640.67

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Solution

The fourth proportional to 6,624.62, 9,141.99 and 3,640.67 is: 5,024.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.62 : 9,141.99 = 3,640.67 : x
  2. Step 2: Convert to fraction form
    6,624.62/9,141.99 = 3,640.67/x
  3. Step 3: Cross multiply
    6,624.62x = 9,141.99 × 3,640.67
  4. Step 4: Simplify right side
    6,624.62x = 33,282,968.73
  5. Step 5: Solve for x
    x = 33,282,968.73/6,624.62
  6. Step 6: Final answer
    x = 5,024.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.