Home / 3,191.28-4,778.58-2,996.64

Finding the Fourth Proportional to 3,191.28, 4,778.58 and 2,996.64

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Solution

The fourth proportional to 3,191.28, 4,778.58 and 2,996.64 is: 4,487.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.28 : 4,778.58 = 2,996.64 : x
  2. Step 2: Convert to fraction form
    3,191.28/4,778.58 = 2,996.64/x
  3. Step 3: Cross multiply
    3,191.28x = 4,778.58 × 2,996.64
  4. Step 4: Simplify right side
    3,191.28x = 14,319,683.97
  5. Step 5: Solve for x
    x = 14,319,683.97/3,191.28
  6. Step 6: Final answer
    x = 4,487.13

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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.