Home / 9,219.29-13,827.75-2,978.66

Finding the Fourth Proportional to 9,219.29, 13,827.75 and 2,978.66

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Solution

The fourth proportional to 9,219.29, 13,827.75 and 2,978.66 is: 4,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.29 : 13,827.75 = 2,978.66 : x
  2. Step 2: Convert to fraction form
    9,219.29/13,827.75 = 2,978.66/x
  3. Step 3: Cross multiply
    9,219.29x = 13,827.75 × 2,978.66
  4. Step 4: Simplify right side
    9,219.29x = 41,188,096.68
  5. Step 5: Solve for x
    x = 41,188,096.68/9,219.29
  6. Step 6: Final answer
    x = 4,467.60

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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.