Home / 3,243.10-4,474.91-1,917.22

Finding the Fourth Proportional to 3,243.10, 4,474.91 and 1,917.22

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Solution

The fourth proportional to 3,243.10, 4,474.91 and 1,917.22 is: 2,645.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.10 : 4,474.91 = 1,917.22 : x
  2. Step 2: Convert to fraction form
    3,243.10/4,474.91 = 1,917.22/x
  3. Step 3: Cross multiply
    3,243.10x = 4,474.91 × 1,917.22
  4. Step 4: Simplify right side
    3,243.10x = 8,579,386.95
  5. Step 5: Solve for x
    x = 8,579,386.95/3,243.10
  6. Step 6: Final answer
    x = 2,645.43

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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.