Home / 3,399.71-4,705.09-3,317.90

Finding the Fourth Proportional to 3,399.71, 4,705.09 and 3,317.90

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Solution

The fourth proportional to 3,399.71, 4,705.09 and 3,317.90 is: 4,591.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.71 : 4,705.09 = 3,317.90 : x
  2. Step 2: Convert to fraction form
    3,399.71/4,705.09 = 3,317.90/x
  3. Step 3: Cross multiply
    3,399.71x = 4,705.09 × 3,317.90
  4. Step 4: Simplify right side
    3,399.71x = 15,610,986.29
  5. Step 5: Solve for x
    x = 15,610,986.29/3,399.71
  6. Step 6: Final answer
    x = 4,591.86

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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.