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Finding the Fourth Proportional to 1,910.36, 2,635.36 and 1,203.08

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Solution

The fourth proportional to 1,910.36, 2,635.36 and 1,203.08 is: 1,659.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.36 : 2,635.36 = 1,203.08 : x
  2. Step 2: Convert to fraction form
    1,910.36/2,635.36 = 1,203.08/x
  3. Step 3: Cross multiply
    1,910.36x = 2,635.36 × 1,203.08
  4. Step 4: Simplify right side
    1,910.36x = 3,170,548.91
  5. Step 5: Solve for x
    x = 3,170,548.91/1,910.36
  6. Step 6: Final answer
    x = 1,659.66

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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.