Home / 3,929.76-5,894.64-1,156.44

Finding the Fourth Proportional to 3,929.76, 5,894.64 and 1,156.44

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Solution

The fourth proportional to 3,929.76, 5,894.64 and 1,156.44 is: 1,734.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.76 : 5,894.64 = 1,156.44 : x
  2. Step 2: Convert to fraction form
    3,929.76/5,894.64 = 1,156.44/x
  3. Step 3: Cross multiply
    3,929.76x = 5,894.64 × 1,156.44
  4. Step 4: Simplify right side
    3,929.76x = 6,816,797.48
  5. Step 5: Solve for x
    x = 6,816,797.48/3,929.76
  6. Step 6: Final answer
    x = 1,734.66

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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.