Home / 1,814.45-2,721.51-1,121.22

Finding the Fourth Proportional to 1,814.45, 2,721.51 and 1,121.22

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Solution

The fourth proportional to 1,814.45, 2,721.51 and 1,121.22 is: 1,681.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814.45 : 2,721.51 = 1,121.22 : x
  2. Step 2: Convert to fraction form
    1,814.45/2,721.51 = 1,121.22/x
  3. Step 3: Cross multiply
    1,814.45x = 2,721.51 × 1,121.22
  4. Step 4: Simplify right side
    1,814.45x = 3,051,411.44
  5. Step 5: Solve for x
    x = 3,051,411.44/1,814.45
  6. Step 6: Final answer
    x = 1,681.73

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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.