Home / 3,927-5,414.46-3,085.08

Finding the Fourth Proportional to 3,927, 5,414.46 and 3,085.08

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Solution

The fourth proportional to 3,927, 5,414.46 and 3,085.08 is: 4,253.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927 : 5,414.46 = 3,085.08 : x
  2. Step 2: Convert to fraction form
    3,927/5,414.46 = 3,085.08/x
  3. Step 3: Cross multiply
    3,927x = 5,414.46 × 3,085.08
  4. Step 4: Simplify right side
    3,927x = 16,704,042.26
  5. Step 5: Solve for x
    x = 16,704,042.26/3,927
  6. Step 6: Final answer
    x = 4,253.64

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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.