Home / 1,086.06-1,629.32-355.62

Finding the Fourth Proportional to 1,086.06, 1,629.32 and 355.62

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Solution

The fourth proportional to 1,086.06, 1,629.32 and 355.62 is: 533.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.06 : 1,629.32 = 355.62 : x
  2. Step 2: Convert to fraction form
    1,086.06/1,629.32 = 355.62/x
  3. Step 3: Cross multiply
    1,086.06x = 1,629.32 × 355.62
  4. Step 4: Simplify right side
    1,086.06x = 579,418.78
  5. Step 5: Solve for x
    x = 579,418.78/1,086.06
  6. Step 6: Final answer
    x = 533.51

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1.5x scale

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.