Home / 2,212.24-3,316.30-1,115.32

Finding the Fourth Proportional to 2,212.24, 3,316.30 and 1,115.32

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Solution

The fourth proportional to 2,212.24, 3,316.30 and 1,115.32 is: 1,671.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.24 : 3,316.30 = 1,115.32 : x
  2. Step 2: Convert to fraction form
    2,212.24/3,316.30 = 1,115.32/x
  3. Step 3: Cross multiply
    2,212.24x = 3,316.30 × 1,115.32
  4. Step 4: Simplify right side
    2,212.24x = 3,698,735.72
  5. Step 5: Solve for x
    x = 3,698,735.72/2,212.24
  6. Step 6: Final answer
    x = 1,671.94

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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.