Home / 5,554.44-7,654.57-3,979.80

Finding the Fourth Proportional to 5,554.44, 7,654.57 and 3,979.80

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Solution

The fourth proportional to 5,554.44, 7,654.57 and 3,979.80 is: 5,484.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,554.44 : 7,654.57 = 3,979.80 : x
  2. Step 2: Convert to fraction form
    5,554.44/7,654.57 = 3,979.80/x
  3. Step 3: Cross multiply
    5,554.44x = 7,654.57 × 3,979.80
  4. Step 4: Simplify right side
    5,554.44x = 30,463,657.69
  5. Step 5: Solve for x
    x = 30,463,657.69/5,554.44
  6. Step 6: Final answer
    x = 5,484.56

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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.