Home / 5,308.45-7,959.63-2,190.61

Finding the Fourth Proportional to 5,308.45, 7,959.63 and 2,190.61

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Solution

The fourth proportional to 5,308.45, 7,959.63 and 2,190.61 is: 3,284.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308.45 : 7,959.63 = 2,190.61 : x
  2. Step 2: Convert to fraction form
    5,308.45/7,959.63 = 2,190.61/x
  3. Step 3: Cross multiply
    5,308.45x = 7,959.63 × 2,190.61
  4. Step 4: Simplify right side
    5,308.45x = 17,436,445.07
  5. Step 5: Solve for x
    x = 17,436,445.07/5,308.45
  6. Step 6: Final answer
    x = 3,284.66

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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.