Home / 3,990.28-5,994.06-3,261.64

Finding the Fourth Proportional to 3,990.28, 5,994.06 and 3,261.64

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Solution

The fourth proportional to 3,990.28, 5,994.06 and 3,261.64 is: 4,899.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.28 : 5,994.06 = 3,261.64 : x
  2. Step 2: Convert to fraction form
    3,990.28/5,994.06 = 3,261.64/x
  3. Step 3: Cross multiply
    3,990.28x = 5,994.06 × 3,261.64
  4. Step 4: Simplify right side
    3,990.28x = 19,550,465.86
  5. Step 5: Solve for x
    x = 19,550,465.86/3,990.28
  6. Step 6: Final answer
    x = 4,899.52

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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.