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Finding the Fourth Proportional to 5,985.96, 8,978.99 and 2,090.37

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Solution

The fourth proportional to 5,985.96, 8,978.99 and 2,090.37 is: 3,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,985.96 : 8,978.99 = 2,090.37 : x
  2. Step 2: Convert to fraction form
    5,985.96/8,978.99 = 2,090.37/x
  3. Step 3: Cross multiply
    5,985.96x = 8,978.99 × 2,090.37
  4. Step 4: Simplify right side
    5,985.96x = 18,769,400.87
  5. Step 5: Solve for x
    x = 18,769,400.87/5,985.96
  6. Step 6: Final answer
    x = 3,135.57

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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.