Home / 2,161.49-3,243.51-1,065.96

Finding the Fourth Proportional to 2,161.49, 3,243.51 and 1,065.96

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Solution

The fourth proportional to 2,161.49, 3,243.51 and 1,065.96 is: 1,599.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.49 : 3,243.51 = 1,065.96 : x
  2. Step 2: Convert to fraction form
    2,161.49/3,243.51 = 1,065.96/x
  3. Step 3: Cross multiply
    2,161.49x = 3,243.51 × 1,065.96
  4. Step 4: Simplify right side
    2,161.49x = 3,457,451.92
  5. Step 5: Solve for x
    x = 3,457,451.92/2,161.49
  6. Step 6: Final answer
    x = 1,599.57

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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.