Home / 5,186.21-7,775.65-2,409.93

Finding the Fourth Proportional to 5,186.21, 7,775.65 and 2,409.93

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Solution

The fourth proportional to 5,186.21, 7,775.65 and 2,409.93 is: 3,613.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.21 : 7,775.65 = 2,409.93 : x
  2. Step 2: Convert to fraction form
    5,186.21/7,775.65 = 2,409.93/x
  3. Step 3: Cross multiply
    5,186.21x = 7,775.65 × 2,409.93
  4. Step 4: Simplify right side
    5,186.21x = 18,738,760.15
  5. Step 5: Solve for x
    x = 18,738,760.15/5,186.21
  6. Step 6: Final answer
    x = 3,613.19

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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.