Home / 5,186.26-7,780.19-2,066.29

Finding the Fourth Proportional to 5,186.26, 7,780.19 and 2,066.29

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Solution

The fourth proportional to 5,186.26, 7,780.19 and 2,066.29 is: 3,099.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.26 : 7,780.19 = 2,066.29 : x
  2. Step 2: Convert to fraction form
    5,186.26/7,780.19 = 2,066.29/x
  3. Step 3: Cross multiply
    5,186.26x = 7,780.19 × 2,066.29
  4. Step 4: Simplify right side
    5,186.26x = 16,076,089.89
  5. Step 5: Solve for x
    x = 16,076,089.89/5,186.26
  6. Step 6: Final answer
    x = 3,099.75

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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.