Home / 3,450.90-5,178.53-1,808.63

Finding the Fourth Proportional to 3,450.90, 5,178.53 and 1,808.63

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Solution

The fourth proportional to 3,450.90, 5,178.53 and 1,808.63 is: 2,714.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.90 : 5,178.53 = 1,808.63 : x
  2. Step 2: Convert to fraction form
    3,450.90/5,178.53 = 1,808.63/x
  3. Step 3: Cross multiply
    3,450.90x = 5,178.53 × 1,808.63
  4. Step 4: Simplify right side
    3,450.90x = 9,366,042.76
  5. Step 5: Solve for x
    x = 9,366,042.76/3,450.90
  6. Step 6: Final answer
    x = 2,714.08

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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.