Home / 3,929.53-5,416.45-2,982.24

Finding the Fourth Proportional to 3,929.53, 5,416.45 and 2,982.24

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Solution

The fourth proportional to 3,929.53, 5,416.45 and 2,982.24 is: 4,110.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.53 : 5,416.45 = 2,982.24 : x
  2. Step 2: Convert to fraction form
    3,929.53/5,416.45 = 2,982.24/x
  3. Step 3: Cross multiply
    3,929.53x = 5,416.45 × 2,982.24
  4. Step 4: Simplify right side
    3,929.53x = 16,153,153.85
  5. Step 5: Solve for x
    x = 16,153,153.85/3,929.53
  6. Step 6: Final answer
    x = 4,110.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.