Home / 3,810.62-5,717.01-1,213.76

Finding the Fourth Proportional to 3,810.62, 5,717.01 and 1,213.76

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Solution

The fourth proportional to 3,810.62, 5,717.01 and 1,213.76 is: 1,820.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.62 : 5,717.01 = 1,213.76 : x
  2. Step 2: Convert to fraction form
    3,810.62/5,717.01 = 1,213.76/x
  3. Step 3: Cross multiply
    3,810.62x = 5,717.01 × 1,213.76
  4. Step 4: Simplify right side
    3,810.62x = 6,939,078.06
  5. Step 5: Solve for x
    x = 6,939,078.06/3,810.62
  6. Step 6: Final answer
    x = 1,820.98

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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.