Home / 1,086.24-1,629.04-623.94

Finding the Fourth Proportional to 1,086.24, 1,629.04 and 623.94

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Solution

The fourth proportional to 1,086.24, 1,629.04 and 623.94 is: 935.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.24 : 1,629.04 = 623.94 : x
  2. Step 2: Convert to fraction form
    1,086.24/1,629.04 = 623.94/x
  3. Step 3: Cross multiply
    1,086.24x = 1,629.04 × 623.94
  4. Step 4: Simplify right side
    1,086.24x = 1,016,423.22
  5. Step 5: Solve for x
    x = 1,016,423.22/1,086.24
  6. Step 6: Final answer
    x = 935.73

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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.