Home / 4,078.11-5,627.79-2,309.71

Finding the Fourth Proportional to 4,078.11, 5,627.79 and 2,309.71

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Solution

The fourth proportional to 4,078.11, 5,627.79 and 2,309.71 is: 3,187.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.11 : 5,627.79 = 2,309.71 : x
  2. Step 2: Convert to fraction form
    4,078.11/5,627.79 = 2,309.71/x
  3. Step 3: Cross multiply
    4,078.11x = 5,627.79 × 2,309.71
  4. Step 4: Simplify right side
    4,078.11x = 12,998,562.84
  5. Step 5: Solve for x
    x = 12,998,562.84/4,078.11
  6. Step 6: Final answer
    x = 3,187.40

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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.