Home / 3,149.53-4,720.84-1,299.69

Finding the Fourth Proportional to 3,149.53, 4,720.84 and 1,299.69

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Solution

The fourth proportional to 3,149.53, 4,720.84 and 1,299.69 is: 1,948.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.53 : 4,720.84 = 1,299.69 : x
  2. Step 2: Convert to fraction form
    3,149.53/4,720.84 = 1,299.69/x
  3. Step 3: Cross multiply
    3,149.53x = 4,720.84 × 1,299.69
  4. Step 4: Simplify right side
    3,149.53x = 6,135,628.54
  5. Step 5: Solve for x
    x = 6,135,628.54/3,149.53
  6. Step 6: Final answer
    x = 1,948.11

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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.