Home / 2,835.36-4,231.08-2,813.76

Finding the Fourth Proportional to 2,835.36, 4,231.08 and 2,813.76

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Solution

The fourth proportional to 2,835.36, 4,231.08 and 2,813.76 is: 4,198.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.36 : 4,231.08 = 2,813.76 : x
  2. Step 2: Convert to fraction form
    2,835.36/4,231.08 = 2,813.76/x
  3. Step 3: Cross multiply
    2,835.36x = 4,231.08 × 2,813.76
  4. Step 4: Simplify right side
    2,835.36x = 11,905,243.66
  5. Step 5: Solve for x
    x = 11,905,243.66/2,835.36
  6. Step 6: Final answer
    x = 4,198.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.