Home / 5,218.41-7,825.56-1,929.25

Finding the Fourth Proportional to 5,218.41, 7,825.56 and 1,929.25

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Solution

The fourth proportional to 5,218.41, 7,825.56 and 1,929.25 is: 2,893.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.41 : 7,825.56 = 1,929.25 : x
  2. Step 2: Convert to fraction form
    5,218.41/7,825.56 = 1,929.25/x
  3. Step 3: Cross multiply
    5,218.41x = 7,825.56 × 1,929.25
  4. Step 4: Simplify right side
    5,218.41x = 15,097,442.07
  5. Step 5: Solve for x
    x = 15,097,442.07/5,218.41
  6. Step 6: Final answer
    x = 2,893.11

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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.