Home / 3,136.50-4,336.56-2,998.80

Finding the Fourth Proportional to 3,136.50, 4,336.56 and 2,998.80

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Solution

The fourth proportional to 3,136.50, 4,336.56 and 2,998.80 is: 4,146.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.50 : 4,336.56 = 2,998.80 : x
  2. Step 2: Convert to fraction form
    3,136.50/4,336.56 = 2,998.80/x
  3. Step 3: Cross multiply
    3,136.50x = 4,336.56 × 2,998.80
  4. Step 4: Simplify right side
    3,136.50x = 13,004,476.13
  5. Step 5: Solve for x
    x = 13,004,476.13/3,136.50
  6. Step 6: Final answer
    x = 4,146.17

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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.