Home / 5,177.21-7,769.16-2,405.19

Finding the Fourth Proportional to 5,177.21, 7,769.16 and 2,405.19

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Solution

The fourth proportional to 5,177.21, 7,769.16 and 2,405.19 is: 3,609.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.21 : 7,769.16 = 2,405.19 : x
  2. Step 2: Convert to fraction form
    5,177.21/7,769.16 = 2,405.19/x
  3. Step 3: Cross multiply
    5,177.21x = 7,769.16 × 2,405.19
  4. Step 4: Simplify right side
    5,177.21x = 18,686,293.91
  5. Step 5: Solve for x
    x = 18,686,293.91/5,177.21
  6. Step 6: Final answer
    x = 3,609.34

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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.