Home / 2,221.14-3,333.18-835.56

Finding the Fourth Proportional to 2,221.14, 3,333.18 and 835.56

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Solution

The fourth proportional to 2,221.14, 3,333.18 and 835.56 is: 1,253.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.14 : 3,333.18 = 835.56 : x
  2. Step 2: Convert to fraction form
    2,221.14/3,333.18 = 835.56/x
  3. Step 3: Cross multiply
    2,221.14x = 3,333.18 × 835.56
  4. Step 4: Simplify right side
    2,221.14x = 2,785,071.88
  5. Step 5: Solve for x
    x = 2,785,071.88/2,221.14
  6. Step 6: Final answer
    x = 1,253.89

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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.