Home / 3,944.79-5,443.56-2,176.40

Finding the Fourth Proportional to 3,944.79, 5,443.56 and 2,176.40

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Solution

The fourth proportional to 3,944.79, 5,443.56 and 2,176.40 is: 3,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944.79 : 5,443.56 = 2,176.40 : x
  2. Step 2: Convert to fraction form
    3,944.79/5,443.56 = 2,176.40/x
  3. Step 3: Cross multiply
    3,944.79x = 5,443.56 × 2,176.40
  4. Step 4: Simplify right side
    3,944.79x = 11,847,378.96
  5. Step 5: Solve for x
    x = 11,847,378.96/3,944.79
  6. Step 6: Final answer
    x = 3,003.30

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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.