Home / 3,450.25-5,170.72-1,887.90

Finding the Fourth Proportional to 3,450.25, 5,170.72 and 1,887.90

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Solution

The fourth proportional to 3,450.25, 5,170.72 and 1,887.90 is: 2,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.25 : 5,170.72 = 1,887.90 : x
  2. Step 2: Convert to fraction form
    3,450.25/5,170.72 = 1,887.90/x
  3. Step 3: Cross multiply
    3,450.25x = 5,170.72 × 1,887.90
  4. Step 4: Simplify right side
    3,450.25x = 9,761,802.29
  5. Step 5: Solve for x
    x = 9,761,802.29/3,450.25
  6. Step 6: Final answer
    x = 2,829.30

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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.