Home / 5,214.54-7,821.74-2,255.08

Finding the Fourth Proportional to 5,214.54, 7,821.74 and 2,255.08

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Solution

The fourth proportional to 5,214.54, 7,821.74 and 2,255.08 is: 3,382.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.54 : 7,821.74 = 2,255.08 : x
  2. Step 2: Convert to fraction form
    5,214.54/7,821.74 = 2,255.08/x
  3. Step 3: Cross multiply
    5,214.54x = 7,821.74 × 2,255.08
  4. Step 4: Simplify right side
    5,214.54x = 17,638,649.44
  5. Step 5: Solve for x
    x = 17,638,649.44/5,214.54
  6. Step 6: Final answer
    x = 3,382.59

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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.