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Finding the Fourth Proportional to 3,558.98, 4,911.13 and 1,965.37

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Solution

The fourth proportional to 3,558.98, 4,911.13 and 1,965.37 is: 2,712.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.98 : 4,911.13 = 1,965.37 : x
  2. Step 2: Convert to fraction form
    3,558.98/4,911.13 = 1,965.37/x
  3. Step 3: Cross multiply
    3,558.98x = 4,911.13 × 1,965.37
  4. Step 4: Simplify right side
    3,558.98x = 9,652,170.38
  5. Step 5: Solve for x
    x = 9,652,170.38/3,558.98
  6. Step 6: Final answer
    x = 2,712.06

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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.