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Finding the Fourth Proportional to 5,987.34, 8,980.74 and 2,291.31

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Solution

The fourth proportional to 5,987.34, 8,980.74 and 2,291.31 is: 3,436.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.34 : 8,980.74 = 2,291.31 : x
  2. Step 2: Convert to fraction form
    5,987.34/8,980.74 = 2,291.31/x
  3. Step 3: Cross multiply
    5,987.34x = 8,980.74 × 2,291.31
  4. Step 4: Simplify right side
    5,987.34x = 20,577,659.37
  5. Step 5: Solve for x
    x = 20,577,659.37/5,987.34
  6. Step 6: Final answer
    x = 3,436.86

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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.