Home / 3,810.52-5,716.64-1,213.36

Finding the Fourth Proportional to 3,810.52, 5,716.64 and 1,213.36

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Solution

The fourth proportional to 3,810.52, 5,716.64 and 1,213.36 is: 1,820.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.52 : 5,716.64 = 1,213.36 : x
  2. Step 2: Convert to fraction form
    3,810.52/5,716.64 = 1,213.36/x
  3. Step 3: Cross multiply
    3,810.52x = 5,716.64 × 1,213.36
  4. Step 4: Simplify right side
    3,810.52x = 6,936,342.31
  5. Step 5: Solve for x
    x = 6,936,342.31/3,810.52
  6. Step 6: Final answer
    x = 1,820.31

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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.