Home / 3,531.44-4,872.12-2,133.68

Finding the Fourth Proportional to 3,531.44, 4,872.12 and 2,133.68

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Solution

The fourth proportional to 3,531.44, 4,872.12 and 2,133.68 is: 2,943.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.44 : 4,872.12 = 2,133.68 : x
  2. Step 2: Convert to fraction form
    3,531.44/4,872.12 = 2,133.68/x
  3. Step 3: Cross multiply
    3,531.44x = 4,872.12 × 2,133.68
  4. Step 4: Simplify right side
    3,531.44x = 10,395,545.00
  5. Step 5: Solve for x
    x = 10,395,545.00/3,531.44
  6. Step 6: Final answer
    x = 2,943.71

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1.5x scale

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.