Home / 3,212.36-4,813.20-3,090.80

Finding the Fourth Proportional to 3,212.36, 4,813.20 and 3,090.80

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Solution

The fourth proportional to 3,212.36, 4,813.20 and 3,090.80 is: 4,631.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.36 : 4,813.20 = 3,090.80 : x
  2. Step 2: Convert to fraction form
    3,212.36/4,813.20 = 3,090.80/x
  3. Step 3: Cross multiply
    3,212.36x = 4,813.20 × 3,090.80
  4. Step 4: Simplify right side
    3,212.36x = 14,876,638.56
  5. Step 5: Solve for x
    x = 14,876,638.56/3,212.36
  6. Step 6: Final answer
    x = 4,631.06

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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.