Home / 3,360.66-5,042.07-1,387.22

Finding the Fourth Proportional to 3,360.66, 5,042.07 and 1,387.22

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Solution

The fourth proportional to 3,360.66, 5,042.07 and 1,387.22 is: 2,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.66 : 5,042.07 = 1,387.22 : x
  2. Step 2: Convert to fraction form
    3,360.66/5,042.07 = 1,387.22/x
  3. Step 3: Cross multiply
    3,360.66x = 5,042.07 × 1,387.22
  4. Step 4: Simplify right side
    3,360.66x = 6,994,428.20
  5. Step 5: Solve for x
    x = 6,994,428.20/3,360.66
  6. Step 6: Final answer
    x = 2,081.27

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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.