Home / 2,306.00-3,185.75-1,511.21

Finding the Fourth Proportional to 2,306.00, 3,185.75 and 1,511.21

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Solution

The fourth proportional to 2,306.00, 3,185.75 and 1,511.21 is: 2,087.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.00 : 3,185.75 = 1,511.21 : x
  2. Step 2: Convert to fraction form
    2,306.00/3,185.75 = 1,511.21/x
  3. Step 3: Cross multiply
    2,306.00x = 3,185.75 × 1,511.21
  4. Step 4: Simplify right side
    2,306.00x = 4,814,325.72
  5. Step 5: Solve for x
    x = 4,814,325.72/2,306.00
  6. Step 6: Final answer
    x = 2,087.74

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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.