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Finding the Fourth Proportional to 5,106.51, 7,046.51 and 2,868.39

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Solution

The fourth proportional to 5,106.51, 7,046.51 and 2,868.39 is: 3,958.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.51 : 7,046.51 = 2,868.39 : x
  2. Step 2: Convert to fraction form
    5,106.51/7,046.51 = 2,868.39/x
  3. Step 3: Cross multiply
    5,106.51x = 7,046.51 × 2,868.39
  4. Step 4: Simplify right side
    5,106.51x = 20,212,124.48
  5. Step 5: Solve for x
    x = 20,212,124.48/5,106.51
  6. Step 6: Final answer
    x = 3,958.11

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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.