Home / 5,345.26-7,375.28-3,105.84

Finding the Fourth Proportional to 5,345.26, 7,375.28 and 3,105.84

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Solution

The fourth proportional to 5,345.26, 7,375.28 and 3,105.84 is: 4,285.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.26 : 7,375.28 = 3,105.84 : x
  2. Step 2: Convert to fraction form
    5,345.26/7,375.28 = 3,105.84/x
  3. Step 3: Cross multiply
    5,345.26x = 7,375.28 × 3,105.84
  4. Step 4: Simplify right side
    5,345.26x = 22,906,439.64
  5. Step 5: Solve for x
    x = 22,906,439.64/5,345.26
  6. Step 6: Final answer
    x = 4,285.37

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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.