Home / 3,212.10-4,817.10-1,131.74

Finding the Fourth Proportional to 3,212.10, 4,817.10 and 1,131.74

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Solution

The fourth proportional to 3,212.10, 4,817.10 and 1,131.74 is: 1,697.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.10 : 4,817.10 = 1,131.74 : x
  2. Step 2: Convert to fraction form
    3,212.10/4,817.10 = 1,131.74/x
  3. Step 3: Cross multiply
    3,212.10x = 4,817.10 × 1,131.74
  4. Step 4: Simplify right side
    3,212.10x = 5,451,704.75
  5. Step 5: Solve for x
    x = 5,451,704.75/3,212.10
  6. Step 6: Final answer
    x = 1,697.24

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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.