Home / 8,290.56-12,431.88-3,021.84

Finding the Fourth Proportional to 8,290.56, 12,431.88 and 3,021.84

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Solution

The fourth proportional to 8,290.56, 12,431.88 and 3,021.84 is: 4,531.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.56 : 12,431.88 = 3,021.84 : x
  2. Step 2: Convert to fraction form
    8,290.56/12,431.88 = 3,021.84/x
  3. Step 3: Cross multiply
    8,290.56x = 12,431.88 × 3,021.84
  4. Step 4: Simplify right side
    8,290.56x = 37,567,152.26
  5. Step 5: Solve for x
    x = 37,567,152.26/8,290.56
  6. Step 6: Final answer
    x = 4,531.32

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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.