Home / 3,868,445.80-5,338,220.10-2,149,507.56

Finding the Fourth Proportional to 3,868,445.80, 5,338,220.10 and 2,149,507.56

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Solution

The fourth proportional to 3,868,445.80, 5,338,220.10 and 2,149,507.56 is: 2,966,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868,445.80 : 5,338,220.10 = 2,149,507.56 : x
  2. Step 2: Convert to fraction form
    3,868,445.80/5,338,220.10 = 2,149,507.56/x
  3. Step 3: Cross multiply
    3,868,445.80x = 5,338,220.10 × 2,149,507.56
  4. Step 4: Simplify right side
    3,868,445.80x = 11,474,544,461,893.96
  5. Step 5: Solve for x
    x = 11,474,544,461,893.96/3,868,445.80
  6. Step 6: Final answer
    x = 2,966,189.80

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Double scale
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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.