Home / 2,190.36-3,284.67-956.89

Finding the Fourth Proportional to 2,190.36, 3,284.67 and 956.89

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Solution

The fourth proportional to 2,190.36, 3,284.67 and 956.89 is: 1,434.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.36 : 3,284.67 = 956.89 : x
  2. Step 2: Convert to fraction form
    2,190.36/3,284.67 = 956.89/x
  3. Step 3: Cross multiply
    2,190.36x = 3,284.67 × 956.89
  4. Step 4: Simplify right side
    2,190.36x = 3,143,067.88
  5. Step 5: Solve for x
    x = 3,143,067.88/2,190.36
  6. Step 6: Final answer
    x = 1,434.95

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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.