Home / 3,962.88-5,944.32-2,660.40

Finding the Fourth Proportional to 3,962.88, 5,944.32 and 2,660.40

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Solution

The fourth proportional to 3,962.88, 5,944.32 and 2,660.40 is: 3,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,962.88 : 5,944.32 = 2,660.40 : x
  2. Step 2: Convert to fraction form
    3,962.88/5,944.32 = 2,660.40/x
  3. Step 3: Cross multiply
    3,962.88x = 5,944.32 × 2,660.40
  4. Step 4: Simplify right side
    3,962.88x = 15,814,268.93
  5. Step 5: Solve for x
    x = 15,814,268.93/3,962.88
  6. Step 6: Final answer
    x = 3,990.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.