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Finding the Fourth Proportional to 5,987.08, 8,978.50 and 2,290.36

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Solution

The fourth proportional to 5,987.08, 8,978.50 and 2,290.36 is: 3,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.08 : 8,978.50 = 2,290.36 : x
  2. Step 2: Convert to fraction form
    5,987.08/8,978.50 = 2,290.36/x
  3. Step 3: Cross multiply
    5,987.08x = 8,978.50 × 2,290.36
  4. Step 4: Simplify right side
    5,987.08x = 20,563,997.26
  5. Step 5: Solve for x
    x = 20,563,997.26/5,987.08
  6. Step 6: Final answer
    x = 3,434.73

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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.