Home / 1,028.19-1,541.94-443.17

Finding the Fourth Proportional to 1,028.19, 1,541.94 and 443.17

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Solution

The fourth proportional to 1,028.19, 1,541.94 and 443.17 is: 664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.19 : 1,541.94 = 443.17 : x
  2. Step 2: Convert to fraction form
    1,028.19/1,541.94 = 443.17/x
  3. Step 3: Cross multiply
    1,028.19x = 1,541.94 × 443.17
  4. Step 4: Simplify right side
    1,028.19x = 683,341.82
  5. Step 5: Solve for x
    x = 683,341.82/1,028.19
  6. Step 6: Final answer
    x = 664.60

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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.