Home / 3,855,172.96-5,320,169.96-2,136,322.20

Finding the Fourth Proportional to 3,855,172.96, 5,320,169.96 and 2,136,322.20

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Solution

The fourth proportional to 3,855,172.96, 5,320,169.96 and 2,136,322.20 is: 2,948,141.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,172.96 : 5,320,169.96 = 2,136,322.20 : x
  2. Step 2: Convert to fraction form
    3,855,172.96/5,320,169.96 = 2,136,322.20/x
  3. Step 3: Cross multiply
    3,855,172.96x = 5,320,169.96 × 2,136,322.20
  4. Step 4: Simplify right side
    3,855,172.96x = 11,365,597,193,321.11
  5. Step 5: Solve for x
    x = 11,365,597,193,321.11/3,855,172.96
  6. Step 6: Final answer
    x = 2,948,141.97

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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.