Home / 3,872,780.70-5,344,506.03-2,153,902.02

Finding the Fourth Proportional to 3,872,780.70, 5,344,506.03 and 2,153,902.02

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Solution

The fourth proportional to 3,872,780.70, 5,344,506.03 and 2,153,902.02 is: 2,972,422.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872,780.70 : 5,344,506.03 = 2,153,902.02 : x
  2. Step 2: Convert to fraction form
    3,872,780.70/5,344,506.03 = 2,153,902.02/x
  3. Step 3: Cross multiply
    3,872,780.70x = 5,344,506.03 × 2,153,902.02
  4. Step 4: Simplify right side
    3,872,780.70x = 11,511,542,333,919.18
  5. Step 5: Solve for x
    x = 11,511,542,333,919.18/3,872,780.70
  6. Step 6: Final answer
    x = 2,972,422.98

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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.