Home / 1,268.20-1,750.06-936.51

Finding the Fourth Proportional to 1,268.20, 1,750.06 and 936.51

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Solution

The fourth proportional to 1,268.20, 1,750.06 and 936.51 is: 1,292.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268.20 : 1,750.06 = 936.51 : x
  2. Step 2: Convert to fraction form
    1,268.20/1,750.06 = 936.51/x
  3. Step 3: Cross multiply
    1,268.20x = 1,750.06 × 936.51
  4. Step 4: Simplify right side
    1,268.20x = 1,638,948.69
  5. Step 5: Solve for x
    x = 1,638,948.69/1,268.20
  6. Step 6: Final answer
    x = 1,292.34

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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.