Home / 3,243.66-4,475.59-1,917.57

Finding the Fourth Proportional to 3,243.66, 4,475.59 and 1,917.57

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Solution

The fourth proportional to 3,243.66, 4,475.59 and 1,917.57 is: 2,645.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.66 : 4,475.59 = 1,917.57 : x
  2. Step 2: Convert to fraction form
    3,243.66/4,475.59 = 1,917.57/x
  3. Step 3: Cross multiply
    3,243.66x = 4,475.59 × 1,917.57
  4. Step 4: Simplify right side
    3,243.66x = 8,582,257.12
  5. Step 5: Solve for x
    x = 8,582,257.12/3,243.66
  6. Step 6: Final answer
    x = 2,645.86

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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.