Home / 3,171.60-4,366.92-2,698.50

Finding the Fourth Proportional to 3,171.60, 4,366.92 and 2,698.50

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Solution

The fourth proportional to 3,171.60, 4,366.92 and 2,698.50 is: 3,715.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.60 : 4,366.92 = 2,698.50 : x
  2. Step 2: Convert to fraction form
    3,171.60/4,366.92 = 2,698.50/x
  3. Step 3: Cross multiply
    3,171.60x = 4,366.92 × 2,698.50
  4. Step 4: Simplify right side
    3,171.60x = 11,784,133.62
  5. Step 5: Solve for x
    x = 11,784,133.62/3,171.60
  6. Step 6: Final answer
    x = 3,715.52

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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.