Home / 4,078.28-5,628.26-2,309.99

Finding the Fourth Proportional to 4,078.28, 5,628.26 and 2,309.99

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Solution

The fourth proportional to 4,078.28, 5,628.26 and 2,309.99 is: 3,187.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.28 : 5,628.26 = 2,309.99 : x
  2. Step 2: Convert to fraction form
    4,078.28/5,628.26 = 2,309.99/x
  3. Step 3: Cross multiply
    4,078.28x = 5,628.26 × 2,309.99
  4. Step 4: Simplify right side
    4,078.28x = 13,001,201.95
  5. Step 5: Solve for x
    x = 13,001,201.95/4,078.28
  6. Step 6: Final answer
    x = 3,187.91

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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.