Home / 3,529.73-5,291.15-1,680.34

Finding the Fourth Proportional to 3,529.73, 5,291.15 and 1,680.34

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Solution

The fourth proportional to 3,529.73, 5,291.15 and 1,680.34 is: 2,518.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.73 : 5,291.15 = 1,680.34 : x
  2. Step 2: Convert to fraction form
    3,529.73/5,291.15 = 1,680.34/x
  3. Step 3: Cross multiply
    3,529.73x = 5,291.15 × 1,680.34
  4. Step 4: Simplify right side
    3,529.73x = 8,890,939.12
  5. Step 5: Solve for x
    x = 8,890,939.12/3,529.73
  6. Step 6: Final answer
    x = 2,518.88

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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.