Home / 4,078.38-5,628.17-2,309.94

Finding the Fourth Proportional to 4,078.38, 5,628.17 and 2,309.94

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Solution

The fourth proportional to 4,078.38, 5,628.17 and 2,309.94 is: 3,187.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.38 : 5,628.17 = 2,309.94 : x
  2. Step 2: Convert to fraction form
    4,078.38/5,628.17 = 2,309.94/x
  3. Step 3: Cross multiply
    4,078.38x = 5,628.17 × 2,309.94
  4. Step 4: Simplify right side
    4,078.38x = 13,000,735.01
  5. Step 5: Solve for x
    x = 13,000,735.01/4,078.38
  6. Step 6: Final answer
    x = 3,187.72

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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.