Home / 3,212.36-4,815.08-2,101.36

Finding the Fourth Proportional to 3,212.36, 4,815.08 and 2,101.36

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Solution

The fourth proportional to 3,212.36, 4,815.08 and 2,101.36 is: 3,149.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.36 : 4,815.08 = 2,101.36 : x
  2. Step 2: Convert to fraction form
    3,212.36/4,815.08 = 2,101.36/x
  3. Step 3: Cross multiply
    3,212.36x = 4,815.08 × 2,101.36
  4. Step 4: Simplify right side
    3,212.36x = 10,118,192.43
  5. Step 5: Solve for x
    x = 10,118,192.43/3,212.36
  6. Step 6: Final answer
    x = 3,149.77

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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.