Home / 3,855,171.96-5,320,168.58-2,136,321.16

Finding the Fourth Proportional to 3,855,171.96, 5,320,168.58 and 2,136,321.16

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Solution

The fourth proportional to 3,855,171.96, 5,320,168.58 and 2,136,321.16 is: 2,948,140.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,171.96 : 5,320,168.58 = 2,136,321.16 : x
  2. Step 2: Convert to fraction form
    3,855,171.96/5,320,168.58 = 2,136,321.16/x
  3. Step 3: Cross multiply
    3,855,171.96x = 5,320,168.58 × 2,136,321.16
  4. Step 4: Simplify right side
    3,855,171.96x = 11,365,588,712,221.15
  5. Step 5: Solve for x
    x = 11,365,588,712,221.15/3,855,171.96
  6. Step 6: Final answer
    x = 2,948,140.53

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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.