Home / 3,243.52-4,475.87-1,917.34

Finding the Fourth Proportional to 3,243.52, 4,475.87 and 1,917.34

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Solution

The fourth proportional to 3,243.52, 4,475.87 and 1,917.34 is: 2,645.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.52 : 4,475.87 = 1,917.34 : x
  2. Step 2: Convert to fraction form
    3,243.52/4,475.87 = 1,917.34/x
  3. Step 3: Cross multiply
    3,243.52x = 4,475.87 × 1,917.34
  4. Step 4: Simplify right side
    3,243.52x = 8,581,755.00
  5. Step 5: Solve for x
    x = 8,581,755.00/3,243.52
  6. Step 6: Final answer
    x = 2,645.82

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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.