Home / 1,086.48-1,629.68-356.06

Finding the Fourth Proportional to 1,086.48, 1,629.68 and 356.06

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Solution

The fourth proportional to 1,086.48, 1,629.68 and 356.06 is: 534.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.48 : 1,629.68 = 356.06 : x
  2. Step 2: Convert to fraction form
    1,086.48/1,629.68 = 356.06/x
  3. Step 3: Cross multiply
    1,086.48x = 1,629.68 × 356.06
  4. Step 4: Simplify right side
    1,086.48x = 580,266.15
  5. Step 5: Solve for x
    x = 580,266.15/1,086.48
  6. Step 6: Final answer
    x = 534.08

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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.