Home / 3,825.56-5,279.28-2,169.56

Finding the Fourth Proportional to 3,825.56, 5,279.28 and 2,169.56

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Solution

The fourth proportional to 3,825.56, 5,279.28 and 2,169.56 is: 2,994.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.56 : 5,279.28 = 2,169.56 : x
  2. Step 2: Convert to fraction form
    3,825.56/5,279.28 = 2,169.56/x
  3. Step 3: Cross multiply
    3,825.56x = 5,279.28 × 2,169.56
  4. Step 4: Simplify right side
    3,825.56x = 11,453,719.78
  5. Step 5: Solve for x
    x = 11,453,719.78/3,825.56
  6. Step 6: Final answer
    x = 2,994.00

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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.