Home / 4,812.62-6,639.82-3,136.22

Finding the Fourth Proportional to 4,812.62, 6,639.82 and 3,136.22

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Solution

The fourth proportional to 4,812.62, 6,639.82 and 3,136.22 is: 4,326.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.62 : 6,639.82 = 3,136.22 : x
  2. Step 2: Convert to fraction form
    4,812.62/6,639.82 = 3,136.22/x
  3. Step 3: Cross multiply
    4,812.62x = 6,639.82 × 3,136.22
  4. Step 4: Simplify right side
    4,812.62x = 20,823,937.78
  5. Step 5: Solve for x
    x = 20,823,937.78/4,812.62
  6. Step 6: Final answer
    x = 4,326.95

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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.