Home / 7,771.21-11,655.36-2,576.41

Finding the Fourth Proportional to 7,771.21, 11,655.36 and 2,576.41

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Solution

The fourth proportional to 7,771.21, 11,655.36 and 2,576.41 is: 3,864.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.21 : 11,655.36 = 2,576.41 : x
  2. Step 2: Convert to fraction form
    7,771.21/11,655.36 = 2,576.41/x
  3. Step 3: Cross multiply
    7,771.21x = 11,655.36 × 2,576.41
  4. Step 4: Simplify right side
    7,771.21x = 30,028,986.06
  5. Step 5: Solve for x
    x = 30,028,986.06/7,771.21
  6. Step 6: Final answer
    x = 3,864.13

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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.