Home / 4,297.28-6,441.44-1,990.72

Finding the Fourth Proportional to 4,297.28, 6,441.44 and 1,990.72

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Solution

The fourth proportional to 4,297.28, 6,441.44 and 1,990.72 is: 2,984.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,297.28 : 6,441.44 = 1,990.72 : x
  2. Step 2: Convert to fraction form
    4,297.28/6,441.44 = 1,990.72/x
  3. Step 3: Cross multiply
    4,297.28x = 6,441.44 × 1,990.72
  4. Step 4: Simplify right side
    4,297.28x = 12,823,103.44
  5. Step 5: Solve for x
    x = 12,823,103.44/4,297.28
  6. Step 6: Final answer
    x = 2,984.00

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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.