Home / 4,078.65-5,628.47-2,286.12

Finding the Fourth Proportional to 4,078.65, 5,628.47 and 2,286.12

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Solution

The fourth proportional to 4,078.65, 5,628.47 and 2,286.12 is: 3,154.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.65 : 5,628.47 = 2,286.12 : x
  2. Step 2: Convert to fraction form
    4,078.65/5,628.47 = 2,286.12/x
  3. Step 3: Cross multiply
    4,078.65x = 5,628.47 × 2,286.12
  4. Step 4: Simplify right side
    4,078.65x = 12,867,352.12
  5. Step 5: Solve for x
    x = 12,867,352.12/4,078.65
  6. Step 6: Final answer
    x = 3,154.81

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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.