Home / 5,099.22-7,647.62-1,979.64

Finding the Fourth Proportional to 5,099.22, 7,647.62 and 1,979.64

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Solution

The fourth proportional to 5,099.22, 7,647.62 and 1,979.64 is: 2,968.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.22 : 7,647.62 = 1,979.64 : x
  2. Step 2: Convert to fraction form
    5,099.22/7,647.62 = 1,979.64/x
  3. Step 3: Cross multiply
    5,099.22x = 7,647.62 × 1,979.64
  4. Step 4: Simplify right side
    5,099.22x = 15,139,524.56
  5. Step 5: Solve for x
    x = 15,139,524.56/5,099.22
  6. Step 6: Final answer
    x = 2,968.99

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1.5x scale

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.