Home / 1,086.49-1,629.77-559.25

Finding the Fourth Proportional to 1,086.49, 1,629.77 and 559.25

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Solution

The fourth proportional to 1,086.49, 1,629.77 and 559.25 is: 838.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.49 : 1,629.77 = 559.25 : x
  2. Step 2: Convert to fraction form
    1,086.49/1,629.77 = 559.25/x
  3. Step 3: Cross multiply
    1,086.49x = 1,629.77 × 559.25
  4. Step 4: Simplify right side
    1,086.49x = 911,448.87
  5. Step 5: Solve for x
    x = 911,448.87/1,086.49
  6. Step 6: Final answer
    x = 838.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.