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Finding the Fourth Proportional to 3,558.37, 4,910.85 and 1,965.16

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Solution

The fourth proportional to 3,558.37, 4,910.85 and 1,965.16 is: 2,712.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.37 : 4,910.85 = 1,965.16 : x
  2. Step 2: Convert to fraction form
    3,558.37/4,910.85 = 1,965.16/x
  3. Step 3: Cross multiply
    3,558.37x = 4,910.85 × 1,965.16
  4. Step 4: Simplify right side
    3,558.37x = 9,650,605.99
  5. Step 5: Solve for x
    x = 9,650,605.99/3,558.37
  6. Step 6: Final answer
    x = 2,712.09

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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.