Home / 5,188.70-7,160.27-2,830.86

Finding the Fourth Proportional to 5,188.70, 7,160.27 and 2,830.86

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Solution

The fourth proportional to 5,188.70, 7,160.27 and 2,830.86 is: 3,906.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.70 : 7,160.27 = 2,830.86 : x
  2. Step 2: Convert to fraction form
    5,188.70/7,160.27 = 2,830.86/x
  3. Step 3: Cross multiply
    5,188.70x = 7,160.27 × 2,830.86
  4. Step 4: Simplify right side
    5,188.70x = 20,269,707.78
  5. Step 5: Solve for x
    x = 20,269,707.78/5,188.70
  6. Step 6: Final answer
    x = 3,906.51

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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.