Home / 5,278.60-7,284.54-3,289.96

Finding the Fourth Proportional to 5,278.60, 7,284.54 and 3,289.96

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Solution

The fourth proportional to 5,278.60, 7,284.54 and 3,289.96 is: 4,540.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.60 : 7,284.54 = 3,289.96 : x
  2. Step 2: Convert to fraction form
    5,278.60/7,284.54 = 3,289.96/x
  3. Step 3: Cross multiply
    5,278.60x = 7,284.54 × 3,289.96
  4. Step 4: Simplify right side
    5,278.60x = 23,965,845.22
  5. Step 5: Solve for x
    x = 23,965,845.22/5,278.60
  6. Step 6: Final answer
    x = 4,540.19

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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.