Home / 3,825.82-5,279.63-2,146.99

Finding the Fourth Proportional to 3,825.82, 5,279.63 and 2,146.99

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Solution

The fourth proportional to 3,825.82, 5,279.63 and 2,146.99 is: 2,962.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.82 : 5,279.63 = 2,146.99 : x
  2. Step 2: Convert to fraction form
    3,825.82/5,279.63 = 2,146.99/x
  3. Step 3: Cross multiply
    3,825.82x = 5,279.63 × 2,146.99
  4. Step 4: Simplify right side
    3,825.82x = 11,335,312.81
  5. Step 5: Solve for x
    x = 11,335,312.81/3,825.82
  6. Step 6: Final answer
    x = 2,962.85

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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.