Home / 3,120.08-4,679.96-1,581.04

Finding the Fourth Proportional to 3,120.08, 4,679.96 and 1,581.04

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Solution

The fourth proportional to 3,120.08, 4,679.96 and 1,581.04 is: 2,371.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.08 : 4,679.96 = 1,581.04 : x
  2. Step 2: Convert to fraction form
    3,120.08/4,679.96 = 1,581.04/x
  3. Step 3: Cross multiply
    3,120.08x = 4,679.96 × 1,581.04
  4. Step 4: Simplify right side
    3,120.08x = 7,399,203.96
  5. Step 5: Solve for x
    x = 7,399,203.96/3,120.08
  6. Step 6: Final answer
    x = 2,371.48

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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.