Home / 5,188.77-7,160.47-2,830.92

Finding the Fourth Proportional to 5,188.77, 7,160.47 and 2,830.92

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Solution

The fourth proportional to 5,188.77, 7,160.47 and 2,830.92 is: 3,906.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.77 : 7,160.47 = 2,830.92 : x
  2. Step 2: Convert to fraction form
    5,188.77/7,160.47 = 2,830.92/x
  3. Step 3: Cross multiply
    5,188.77x = 7,160.47 × 2,830.92
  4. Step 4: Simplify right side
    5,188.77x = 20,270,717.73
  5. Step 5: Solve for x
    x = 20,270,717.73/5,188.77
  6. Step 6: Final answer
    x = 3,906.65

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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.