Home / 3,551.29-5,322.30-1,905.91

Finding the Fourth Proportional to 3,551.29, 5,322.30 and 1,905.91

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Solution

The fourth proportional to 3,551.29, 5,322.30 and 1,905.91 is: 2,856.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.29 : 5,322.30 = 1,905.91 : x
  2. Step 2: Convert to fraction form
    3,551.29/5,322.30 = 1,905.91/x
  3. Step 3: Cross multiply
    3,551.29x = 5,322.30 × 1,905.91
  4. Step 4: Simplify right side
    3,551.29x = 10,143,788.65
  5. Step 5: Solve for x
    x = 10,143,788.65/3,551.29
  6. Step 6: Final answer
    x = 2,856.37

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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.