Home / 1,906.51-2,631.99-1,235.28

Finding the Fourth Proportional to 1,906.51, 2,631.99 and 1,235.28

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Solution

The fourth proportional to 1,906.51, 2,631.99 and 1,235.28 is: 1,705.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.51 : 2,631.99 = 1,235.28 : x
  2. Step 2: Convert to fraction form
    1,906.51/2,631.99 = 1,235.28/x
  3. Step 3: Cross multiply
    1,906.51x = 2,631.99 × 1,235.28
  4. Step 4: Simplify right side
    1,906.51x = 3,251,236.90
  5. Step 5: Solve for x
    x = 3,251,236.90/1,906.51
  6. Step 6: Final answer
    x = 1,705.33

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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.