Home / 3,453.56-4,768.73-2,815.61

Finding the Fourth Proportional to 3,453.56, 4,768.73 and 2,815.61

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Solution

The fourth proportional to 3,453.56, 4,768.73 and 2,815.61 is: 3,887.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.56 : 4,768.73 = 2,815.61 : x
  2. Step 2: Convert to fraction form
    3,453.56/4,768.73 = 2,815.61/x
  3. Step 3: Cross multiply
    3,453.56x = 4,768.73 × 2,815.61
  4. Step 4: Simplify right side
    3,453.56x = 13,426,845.95
  5. Step 5: Solve for x
    x = 13,426,845.95/3,453.56
  6. Step 6: Final answer
    x = 3,887.83

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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.