Home / 1,086.67-1,629.54-356.07

Finding the Fourth Proportional to 1,086.67, 1,629.54 and 356.07

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Solution

The fourth proportional to 1,086.67, 1,629.54 and 356.07 is: 533.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.67 : 1,629.54 = 356.07 : x
  2. Step 2: Convert to fraction form
    1,086.67/1,629.54 = 356.07/x
  3. Step 3: Cross multiply
    1,086.67x = 1,629.54 × 356.07
  4. Step 4: Simplify right side
    1,086.67x = 580,232.84
  5. Step 5: Solve for x
    x = 580,232.84/1,086.67
  6. Step 6: Final answer
    x = 533.96

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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.