Home / 2,161.21-2,983.90-1,662.97

Finding the Fourth Proportional to 2,161.21, 2,983.90 and 1,662.97

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Solution

The fourth proportional to 2,161.21, 2,983.90 and 1,662.97 is: 2,296.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.21 : 2,983.90 = 1,662.97 : x
  2. Step 2: Convert to fraction form
    2,161.21/2,983.90 = 1,662.97/x
  3. Step 3: Cross multiply
    2,161.21x = 2,983.90 × 1,662.97
  4. Step 4: Simplify right side
    2,161.21x = 4,962,136.18
  5. Step 5: Solve for x
    x = 4,962,136.18/2,161.21
  6. Step 6: Final answer
    x = 2,296.00

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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.