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Finding the Fourth Proportional to 6,862, 10,293 and 1,667.89

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Solution

The fourth proportional to 6,862, 10,293 and 1,667.89 is: 2,501.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862 : 10,293 = 1,667.89 : x
  2. Step 2: Convert to fraction form
    6,862/10,293 = 1,667.89/x
  3. Step 3: Cross multiply
    6,862x = 10,293 × 1,667.89
  4. Step 4: Simplify right side
    6,862x = 17,167,591.77
  5. Step 5: Solve for x
    x = 17,167,591.77/6,862
  6. Step 6: Final answer
    x = 2,501.84

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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.