Home / 3,890.06-5,830.19-2,111.06

Finding the Fourth Proportional to 3,890.06, 5,830.19 and 2,111.06

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Solution

The fourth proportional to 3,890.06, 5,830.19 and 2,111.06 is: 3,163.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.06 : 5,830.19 = 2,111.06 : x
  2. Step 2: Convert to fraction form
    3,890.06/5,830.19 = 2,111.06/x
  3. Step 3: Cross multiply
    3,890.06x = 5,830.19 × 2,111.06
  4. Step 4: Simplify right side
    3,890.06x = 12,307,892.84
  5. Step 5: Solve for x
    x = 12,307,892.84/3,890.06
  6. Step 6: Final answer
    x = 3,163.93

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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.