Home / 2,233.21-3,081.19-1,288.93

Finding the Fourth Proportional to 2,233.21, 3,081.19 and 1,288.93

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Solution

The fourth proportional to 2,233.21, 3,081.19 and 1,288.93 is: 1,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,233.21 : 3,081.19 = 1,288.93 : x
  2. Step 2: Convert to fraction form
    2,233.21/3,081.19 = 1,288.93/x
  3. Step 3: Cross multiply
    2,233.21x = 3,081.19 × 1,288.93
  4. Step 4: Simplify right side
    2,233.21x = 3,971,438.23
  5. Step 5: Solve for x
    x = 3,971,438.23/2,233.21
  6. Step 6: Final answer
    x = 1,778.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.