Home / 3,929.75-5,894.64-1,332.69

Finding the Fourth Proportional to 3,929.75, 5,894.64 and 1,332.69

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Solution

The fourth proportional to 3,929.75, 5,894.64 and 1,332.69 is: 1,999.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.75 : 5,894.64 = 1,332.69 : x
  2. Step 2: Convert to fraction form
    3,929.75/5,894.64 = 1,332.69/x
  3. Step 3: Cross multiply
    3,929.75x = 5,894.64 × 1,332.69
  4. Step 4: Simplify right side
    3,929.75x = 7,855,705.68
  5. Step 5: Solve for x
    x = 7,855,705.68/3,929.75
  6. Step 6: Final answer
    x = 1,999.04

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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.