Home / 3,112.22-4,665.80-1,264.21

Finding the Fourth Proportional to 3,112.22, 4,665.80 and 1,264.21

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Solution

The fourth proportional to 3,112.22, 4,665.80 and 1,264.21 is: 1,895.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.22 : 4,665.80 = 1,264.21 : x
  2. Step 2: Convert to fraction form
    3,112.22/4,665.80 = 1,264.21/x
  3. Step 3: Cross multiply
    3,112.22x = 4,665.80 × 1,264.21
  4. Step 4: Simplify right side
    3,112.22x = 5,898,542.51
  5. Step 5: Solve for x
    x = 5,898,542.51/3,112.22
  6. Step 6: Final answer
    x = 1,895.28

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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.