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Finding the Fourth Proportional to 2,205.73, 3,313.21 and 1,859.74

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Solution

The fourth proportional to 2,205.73, 3,313.21 and 1,859.74 is: 2,793.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.73 : 3,313.21 = 1,859.74 : x
  2. Step 2: Convert to fraction form
    2,205.73/3,313.21 = 1,859.74/x
  3. Step 3: Cross multiply
    2,205.73x = 3,313.21 × 1,859.74
  4. Step 4: Simplify right side
    2,205.73x = 6,161,712.68
  5. Step 5: Solve for x
    x = 6,161,712.68/2,205.73
  6. Step 6: Final answer
    x = 2,793.50

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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.