Home / 2,143,991.70-3,213,035.10-1,422,281.70

Finding the Fourth Proportional to 2,143,991.70, 3,213,035.10 and 1,422,281.70

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Solution

The fourth proportional to 2,143,991.70, 3,213,035.10 and 1,422,281.70 is: 2,131,463.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,991.70 : 3,213,035.10 = 1,422,281.70 : x
  2. Step 2: Convert to fraction form
    2,143,991.70/3,213,035.10 = 1,422,281.70/x
  3. Step 3: Cross multiply
    2,143,991.70x = 3,213,035.10 × 1,422,281.70
  4. Step 4: Simplify right side
    2,143,991.70x = 4,569,841,024,187.67
  5. Step 5: Solve for x
    x = 4,569,841,024,187.67/2,143,991.70
  6. Step 6: Final answer
    x = 2,131,463.95

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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.