Home / 3,149.09-4,722.72-1,200.84

Finding the Fourth Proportional to 3,149.09, 4,722.72 and 1,200.84

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Solution

The fourth proportional to 3,149.09, 4,722.72 and 1,200.84 is: 1,800.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.09 : 4,722.72 = 1,200.84 : x
  2. Step 2: Convert to fraction form
    3,149.09/4,722.72 = 1,200.84/x
  3. Step 3: Cross multiply
    3,149.09x = 4,722.72 × 1,200.84
  4. Step 4: Simplify right side
    3,149.09x = 5,671,207.47
  5. Step 5: Solve for x
    x = 5,671,207.47/3,149.09
  6. Step 6: Final answer
    x = 1,800.90

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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.