Home / 2,212.85-3,316.96-1,114.92

Finding the Fourth Proportional to 2,212.85, 3,316.96 and 1,114.92

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Solution

The fourth proportional to 2,212.85, 3,316.96 and 1,114.92 is: 1,671.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.85 : 3,316.96 = 1,114.92 : x
  2. Step 2: Convert to fraction form
    2,212.85/3,316.96 = 1,114.92/x
  3. Step 3: Cross multiply
    2,212.85x = 3,316.96 × 1,114.92
  4. Step 4: Simplify right side
    2,212.85x = 3,698,146.44
  5. Step 5: Solve for x
    x = 3,698,146.44/2,212.85
  6. Step 6: Final answer
    x = 1,671.21

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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.