Home / 5,266.38-7,899.33-1,979.22

Finding the Fourth Proportional to 5,266.38, 7,899.33 and 1,979.22

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Solution

The fourth proportional to 5,266.38, 7,899.33 and 1,979.22 is: 2,968.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266.38 : 7,899.33 = 1,979.22 : x
  2. Step 2: Convert to fraction form
    5,266.38/7,899.33 = 1,979.22/x
  3. Step 3: Cross multiply
    5,266.38x = 7,899.33 × 1,979.22
  4. Step 4: Simplify right side
    5,266.38x = 15,634,511.92
  5. Step 5: Solve for x
    x = 15,634,511.92/5,266.38
  6. Step 6: Final answer
    x = 2,968.74

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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.