Home / 3,189.19-4,780.90-1,136.71

Finding the Fourth Proportional to 3,189.19, 4,780.90 and 1,136.71

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Solution

The fourth proportional to 3,189.19, 4,780.90 and 1,136.71 is: 1,704.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.19 : 4,780.90 = 1,136.71 : x
  2. Step 2: Convert to fraction form
    3,189.19/4,780.90 = 1,136.71/x
  3. Step 3: Cross multiply
    3,189.19x = 4,780.90 × 1,136.71
  4. Step 4: Simplify right side
    3,189.19x = 5,434,496.84
  5. Step 5: Solve for x
    x = 5,434,496.84/3,189.19
  6. Step 6: Final answer
    x = 1,704.04

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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.