Home / 2,212.52-3,320.09-1,116.99

Finding the Fourth Proportional to 2,212.52, 3,320.09 and 1,116.99

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Solution

The fourth proportional to 2,212.52, 3,320.09 and 1,116.99 is: 1,676.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.52 : 3,320.09 = 1,116.99 : x
  2. Step 2: Convert to fraction form
    2,212.52/3,320.09 = 1,116.99/x
  3. Step 3: Cross multiply
    2,212.52x = 3,320.09 × 1,116.99
  4. Step 4: Simplify right side
    2,212.52x = 3,708,505.93
  5. Step 5: Solve for x
    x = 3,708,505.93/2,212.52
  6. Step 6: Final answer
    x = 1,676.15

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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.