Home / 2,288.75-3,431.91-1,055.53

Finding the Fourth Proportional to 2,288.75, 3,431.91 and 1,055.53

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Solution

The fourth proportional to 2,288.75, 3,431.91 and 1,055.53 is: 1,582.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288.75 : 3,431.91 = 1,055.53 : x
  2. Step 2: Convert to fraction form
    2,288.75/3,431.91 = 1,055.53/x
  3. Step 3: Cross multiply
    2,288.75x = 3,431.91 × 1,055.53
  4. Step 4: Simplify right side
    2,288.75x = 3,622,466.80
  5. Step 5: Solve for x
    x = 3,622,466.80/2,288.75
  6. Step 6: Final answer
    x = 1,582.73

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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.