Home / 4,719.15-6,512.79-2,830.81

Finding the Fourth Proportional to 4,719.15, 6,512.79 and 2,830.81

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Solution

The fourth proportional to 4,719.15, 6,512.79 and 2,830.81 is: 3,906.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.15 : 6,512.79 = 2,830.81 : x
  2. Step 2: Convert to fraction form
    4,719.15/6,512.79 = 2,830.81/x
  3. Step 3: Cross multiply
    4,719.15x = 6,512.79 × 2,830.81
  4. Step 4: Simplify right side
    4,719.15x = 18,436,454.78
  5. Step 5: Solve for x
    x = 18,436,454.78/4,719.15
  6. Step 6: Final answer
    x = 3,906.73

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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.