Home / 3,530.31-5,290.75-1,861.03

Finding the Fourth Proportional to 3,530.31, 5,290.75 and 1,861.03

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Solution

The fourth proportional to 3,530.31, 5,290.75 and 1,861.03 is: 2,789.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.31 : 5,290.75 = 1,861.03 : x
  2. Step 2: Convert to fraction form
    3,530.31/5,290.75 = 1,861.03/x
  3. Step 3: Cross multiply
    3,530.31x = 5,290.75 × 1,861.03
  4. Step 4: Simplify right side
    3,530.31x = 9,846,244.47
  5. Step 5: Solve for x
    x = 9,846,244.47/3,530.31
  6. Step 6: Final answer
    x = 2,789.06

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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.