Home / 3,630.28-5,442.19-1,289.97

Finding the Fourth Proportional to 3,630.28, 5,442.19 and 1,289.97

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Solution

The fourth proportional to 3,630.28, 5,442.19 and 1,289.97 is: 1,933.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.28 : 5,442.19 = 1,289.97 : x
  2. Step 2: Convert to fraction form
    3,630.28/5,442.19 = 1,289.97/x
  3. Step 3: Cross multiply
    3,630.28x = 5,442.19 × 1,289.97
  4. Step 4: Simplify right side
    3,630.28x = 7,020,261.83
  5. Step 5: Solve for x
    x = 7,020,261.83/3,630.28
  6. Step 6: Final answer
    x = 1,933.81

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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.