Home / 3,810.76-5,712.35-2,163.89

Finding the Fourth Proportional to 3,810.76, 5,712.35 and 2,163.89

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Solution

The fourth proportional to 3,810.76, 5,712.35 and 2,163.89 is: 3,243.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.76 : 5,712.35 = 2,163.89 : x
  2. Step 2: Convert to fraction form
    3,810.76/5,712.35 = 2,163.89/x
  3. Step 3: Cross multiply
    3,810.76x = 5,712.35 × 2,163.89
  4. Step 4: Simplify right side
    3,810.76x = 12,360,886.22
  5. Step 5: Solve for x
    x = 12,360,886.22/3,810.76
  6. Step 6: Final answer
    x = 3,243.68

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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.