Home / 3,558.75-4,910.67-1,965.21

Finding the Fourth Proportional to 3,558.75, 4,910.67 and 1,965.21

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Solution

The fourth proportional to 3,558.75, 4,910.67 and 1,965.21 is: 2,711.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.75 : 4,910.67 = 1,965.21 : x
  2. Step 2: Convert to fraction form
    3,558.75/4,910.67 = 1,965.21/x
  3. Step 3: Cross multiply
    3,558.75x = 4,910.67 × 1,965.21
  4. Step 4: Simplify right side
    3,558.75x = 9,650,497.79
  5. Step 5: Solve for x
    x = 9,650,497.79/3,558.75
  6. Step 6: Final answer
    x = 2,711.77

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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.