Home / 5,230.17-7,217.78-2,961.33

Finding the Fourth Proportional to 5,230.17, 7,217.78 and 2,961.33

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Solution

The fourth proportional to 5,230.17, 7,217.78 and 2,961.33 is: 4,086.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.17 : 7,217.78 = 2,961.33 : x
  2. Step 2: Convert to fraction form
    5,230.17/7,217.78 = 2,961.33/x
  3. Step 3: Cross multiply
    5,230.17x = 7,217.78 × 2,961.33
  4. Step 4: Simplify right side
    5,230.17x = 21,374,228.45
  5. Step 5: Solve for x
    x = 21,374,228.45/5,230.17
  6. Step 6: Final answer
    x = 4,086.72

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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.