Home / 5,353.66-7,388.76-3,863.56

Finding the Fourth Proportional to 5,353.66, 7,388.76 and 3,863.56

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Solution

The fourth proportional to 5,353.66, 7,388.76 and 3,863.56 is: 5,332.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,353.66 : 7,388.76 = 3,863.56 : x
  2. Step 2: Convert to fraction form
    5,353.66/7,388.76 = 3,863.56/x
  3. Step 3: Cross multiply
    5,353.66x = 7,388.76 × 3,863.56
  4. Step 4: Simplify right side
    5,353.66x = 28,546,917.59
  5. Step 5: Solve for x
    x = 28,546,917.59/5,353.66
  6. Step 6: Final answer
    x = 5,332.22

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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.