Home / 3,212.91-4,433.67-1,887.75

Finding the Fourth Proportional to 3,212.91, 4,433.67 and 1,887.75

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Solution

The fourth proportional to 3,212.91, 4,433.67 and 1,887.75 is: 2,605.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.91 : 4,433.67 = 1,887.75 : x
  2. Step 2: Convert to fraction form
    3,212.91/4,433.67 = 1,887.75/x
  3. Step 3: Cross multiply
    3,212.91x = 4,433.67 × 1,887.75
  4. Step 4: Simplify right side
    3,212.91x = 8,369,660.54
  5. Step 5: Solve for x
    x = 8,369,660.54/3,212.91
  6. Step 6: Final answer
    x = 2,605.01

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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.