Home / 5,103-7,042.14-3,113.24

Finding the Fourth Proportional to 5,103, 7,042.14 and 3,113.24

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Solution

The fourth proportional to 5,103, 7,042.14 and 3,113.24 is: 4,296.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103 : 7,042.14 = 3,113.24 : x
  2. Step 2: Convert to fraction form
    5,103/7,042.14 = 3,113.24/x
  3. Step 3: Cross multiply
    5,103x = 7,042.14 × 3,113.24
  4. Step 4: Simplify right side
    5,103x = 21,923,836.72
  5. Step 5: Solve for x
    x = 21,923,836.72/5,103
  6. Step 6: Final answer
    x = 4,296.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.