Home / 3,872.25-5,809.46-1,275.26

Finding the Fourth Proportional to 3,872.25, 5,809.46 and 1,275.26

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Solution

The fourth proportional to 3,872.25, 5,809.46 and 1,275.26 is: 1,913.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.25 : 5,809.46 = 1,275.26 : x
  2. Step 2: Convert to fraction form
    3,872.25/5,809.46 = 1,275.26/x
  3. Step 3: Cross multiply
    3,872.25x = 5,809.46 × 1,275.26
  4. Step 4: Simplify right side
    3,872.25x = 7,408,536.54
  5. Step 5: Solve for x
    x = 7,408,536.54/3,872.25
  6. Step 6: Final answer
    x = 1,913.24

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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.