Home / 4,078.32-5,628.36-2,309.94

Finding the Fourth Proportional to 4,078.32, 5,628.36 and 2,309.94

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Solution

The fourth proportional to 4,078.32, 5,628.36 and 2,309.94 is: 3,187.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.32 : 5,628.36 = 2,309.94 : x
  2. Step 2: Convert to fraction form
    4,078.32/5,628.36 = 2,309.94/x
  3. Step 3: Cross multiply
    4,078.32x = 5,628.36 × 2,309.94
  4. Step 4: Simplify right side
    4,078.32x = 13,001,173.90
  5. Step 5: Solve for x
    x = 13,001,173.90/4,078.32
  6. Step 6: Final answer
    x = 3,187.87

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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.