Home / 5,623.46-8,439.78-3,981.62

Finding the Fourth Proportional to 5,623.46, 8,439.78 and 3,981.62

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Solution

The fourth proportional to 5,623.46, 8,439.78 and 3,981.62 is: 5,975.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,623.46 : 8,439.78 = 3,981.62 : x
  2. Step 2: Convert to fraction form
    5,623.46/8,439.78 = 3,981.62/x
  3. Step 3: Cross multiply
    5,623.46x = 8,439.78 × 3,981.62
  4. Step 4: Simplify right side
    5,623.46x = 33,603,996.84
  5. Step 5: Solve for x
    x = 33,603,996.84/5,623.46
  6. Step 6: Final answer
    x = 5,975.68

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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.