Home / 3,920.64-5,879.66-1,580.04

Finding the Fourth Proportional to 3,920.64, 5,879.66 and 1,580.04

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Solution

The fourth proportional to 3,920.64, 5,879.66 and 1,580.04 is: 2,369.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.64 : 5,879.66 = 1,580.04 : x
  2. Step 2: Convert to fraction form
    3,920.64/5,879.66 = 1,580.04/x
  3. Step 3: Cross multiply
    3,920.64x = 5,879.66 × 1,580.04
  4. Step 4: Simplify right side
    3,920.64x = 9,290,090.09
  5. Step 5: Solve for x
    x = 9,290,090.09/3,920.64
  6. Step 6: Final answer
    x = 2,369.53

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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.