Home / 5,188.54-7,160.18-2,830.68

Finding the Fourth Proportional to 5,188.54, 7,160.18 and 2,830.68

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Solution

The fourth proportional to 5,188.54, 7,160.18 and 2,830.68 is: 3,906.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.54 : 7,160.18 = 2,830.68 : x
  2. Step 2: Convert to fraction form
    5,188.54/7,160.18 = 2,830.68/x
  3. Step 3: Cross multiply
    5,188.54x = 7,160.18 × 2,830.68
  4. Step 4: Simplify right side
    5,188.54x = 20,268,178.32
  5. Step 5: Solve for x
    x = 20,268,178.32/5,188.54
  6. Step 6: Final answer
    x = 3,906.34

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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.