Home / 5,553.44-7,653.19-3,978.80

Finding the Fourth Proportional to 5,553.44, 7,653.19 and 3,978.80

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Solution

The fourth proportional to 5,553.44, 7,653.19 and 3,978.80 is: 5,483.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.44 : 7,653.19 = 3,978.80 : x
  2. Step 2: Convert to fraction form
    5,553.44/7,653.19 = 3,978.80/x
  3. Step 3: Cross multiply
    5,553.44x = 7,653.19 × 3,978.80
  4. Step 4: Simplify right side
    5,553.44x = 30,450,512.37
  5. Step 5: Solve for x
    x = 30,450,512.37/5,553.44
  6. Step 6: Final answer
    x = 5,483.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.