Home / 3,651.17-5,478.37-1,342.13

Finding the Fourth Proportional to 3,651.17, 5,478.37 and 1,342.13

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Solution

The fourth proportional to 3,651.17, 5,478.37 and 1,342.13 is: 2,013.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.17 : 5,478.37 = 1,342.13 : x
  2. Step 2: Convert to fraction form
    3,651.17/5,478.37 = 1,342.13/x
  3. Step 3: Cross multiply
    3,651.17x = 5,478.37 × 1,342.13
  4. Step 4: Simplify right side
    3,651.17x = 7,352,653.98
  5. Step 5: Solve for x
    x = 7,352,653.98/3,651.17
  6. Step 6: Final answer
    x = 2,013.78

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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.