Home / 3,814.80-5,264.41-2,136.22

Finding the Fourth Proportional to 3,814.80, 5,264.41 and 2,136.22

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Solution

The fourth proportional to 3,814.80, 5,264.41 and 2,136.22 is: 2,947.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.80 : 5,264.41 = 2,136.22 : x
  2. Step 2: Convert to fraction form
    3,814.80/5,264.41 = 2,136.22/x
  3. Step 3: Cross multiply
    3,814.80x = 5,264.41 × 2,136.22
  4. Step 4: Simplify right side
    3,814.80x = 11,245,953.05
  5. Step 5: Solve for x
    x = 11,245,953.05/3,814.80
  6. Step 6: Final answer
    x = 2,947.98

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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.