Home / 2,172,912.30-3,259,368.45-1,369,845.90

Finding the Fourth Proportional to 2,172,912.30, 3,259,368.45 and 1,369,845.90

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Solution

The fourth proportional to 2,172,912.30, 3,259,368.45 and 1,369,845.90 is: 2,054,768.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,912.30 : 3,259,368.45 = 1,369,845.90 : x
  2. Step 2: Convert to fraction form
    2,172,912.30/3,259,368.45 = 1,369,845.90/x
  3. Step 3: Cross multiply
    2,172,912.30x = 3,259,368.45 × 1,369,845.90
  4. Step 4: Simplify right side
    2,172,912.30x = 4,464,832,507,821.85
  5. Step 5: Solve for x
    x = 4,464,832,507,821.85/2,172,912.30
  6. Step 6: Final answer
    x = 2,054,768.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.