Home / 1,028.40-1,541.70-369.96

Finding the Fourth Proportional to 1,028.40, 1,541.70 and 369.96

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Solution

The fourth proportional to 1,028.40, 1,541.70 and 369.96 is: 554.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.40 : 1,541.70 = 369.96 : x
  2. Step 2: Convert to fraction form
    1,028.40/1,541.70 = 369.96/x
  3. Step 3: Cross multiply
    1,028.40x = 1,541.70 × 369.96
  4. Step 4: Simplify right side
    1,028.40x = 570,367.33
  5. Step 5: Solve for x
    x = 570,367.33/1,028.40
  6. Step 6: Final answer
    x = 554.62

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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.