Home / 4,042.91-6,065.28-1,121.45

Finding the Fourth Proportional to 4,042.91, 6,065.28 and 1,121.45

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Solution

The fourth proportional to 4,042.91, 6,065.28 and 1,121.45 is: 1,682.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,042.91 : 6,065.28 = 1,121.45 : x
  2. Step 2: Convert to fraction form
    4,042.91/6,065.28 = 1,121.45/x
  3. Step 3: Cross multiply
    4,042.91x = 6,065.28 × 1,121.45
  4. Step 4: Simplify right side
    4,042.91x = 6,801,908.26
  5. Step 5: Solve for x
    x = 6,801,908.26/4,042.91
  6. Step 6: Final answer
    x = 1,682.43

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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.