Home / 3,825.40-5,279.58-2,253.64

Finding the Fourth Proportional to 3,825.40, 5,279.58 and 2,253.64

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Solution

The fourth proportional to 3,825.40, 5,279.58 and 2,253.64 is: 3,110.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.40 : 5,279.58 = 2,253.64 : x
  2. Step 2: Convert to fraction form
    3,825.40/5,279.58 = 2,253.64/x
  3. Step 3: Cross multiply
    3,825.40x = 5,279.58 × 2,253.64
  4. Step 4: Simplify right side
    3,825.40x = 11,898,272.67
  5. Step 5: Solve for x
    x = 11,898,272.67/3,825.40
  6. Step 6: Final answer
    x = 3,110.33

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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.