Home / 4,078.41-6,109.37-2,688.31

Finding the Fourth Proportional to 4,078.41, 6,109.37 and 2,688.31

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Solution

The fourth proportional to 4,078.41, 6,109.37 and 2,688.31 is: 4,027.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.41 : 6,109.37 = 2,688.31 : x
  2. Step 2: Convert to fraction form
    4,078.41/6,109.37 = 2,688.31/x
  3. Step 3: Cross multiply
    4,078.41x = 6,109.37 × 2,688.31
  4. Step 4: Simplify right side
    4,078.41x = 16,423,880.46
  5. Step 5: Solve for x
    x = 16,423,880.46/4,078.41
  6. Step 6: Final answer
    x = 4,027.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.