Home / 1,765.45-2,431.71-1,634.08

Finding the Fourth Proportional to 1,765.45, 2,431.71 and 1,634.08

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Solution

The fourth proportional to 1,765.45, 2,431.71 and 1,634.08 is: 2,250.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765.45 : 2,431.71 = 1,634.08 : x
  2. Step 2: Convert to fraction form
    1,765.45/2,431.71 = 1,634.08/x
  3. Step 3: Cross multiply
    1,765.45x = 2,431.71 × 1,634.08
  4. Step 4: Simplify right side
    1,765.45x = 3,973,608.68
  5. Step 5: Solve for x
    x = 3,973,608.68/1,765.45
  6. Step 6: Final answer
    x = 2,250.76

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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.