Home / 5,500.42-8,252.04-1,990.78

Finding the Fourth Proportional to 5,500.42, 8,252.04 and 1,990.78

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Solution

The fourth proportional to 5,500.42, 8,252.04 and 1,990.78 is: 2,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,500.42 : 8,252.04 = 1,990.78 : x
  2. Step 2: Convert to fraction form
    5,500.42/8,252.04 = 1,990.78/x
  3. Step 3: Cross multiply
    5,500.42x = 8,252.04 × 1,990.78
  4. Step 4: Simplify right side
    5,500.42x = 16,427,996.19
  5. Step 5: Solve for x
    x = 16,427,996.19/5,500.42
  6. Step 6: Final answer
    x = 2,986.68

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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.