Home / 2,813.73-3,883.70-1,618.85

Finding the Fourth Proportional to 2,813.73, 3,883.70 and 1,618.85

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Solution

The fourth proportional to 2,813.73, 3,883.70 and 1,618.85 is: 2,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.73 : 3,883.70 = 1,618.85 : x
  2. Step 2: Convert to fraction form
    2,813.73/3,883.70 = 1,618.85/x
  3. Step 3: Cross multiply
    2,813.73x = 3,883.70 × 1,618.85
  4. Step 4: Simplify right side
    2,813.73x = 6,287,127.75
  5. Step 5: Solve for x
    x = 6,287,127.75/2,813.73
  6. Step 6: Final answer
    x = 2,234.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.