Home / 7,771.28-11,655.80-2,576.48

Finding the Fourth Proportional to 7,771.28, 11,655.80 and 2,576.48

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Solution

The fourth proportional to 7,771.28, 11,655.80 and 2,576.48 is: 3,864.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.28 : 11,655.80 = 2,576.48 : x
  2. Step 2: Convert to fraction form
    7,771.28/11,655.80 = 2,576.48/x
  3. Step 3: Cross multiply
    7,771.28x = 11,655.80 × 2,576.48
  4. Step 4: Simplify right side
    7,771.28x = 30,030,935.58
  5. Step 5: Solve for x
    x = 30,030,935.58/7,771.28
  6. Step 6: Final answer
    x = 3,864.35

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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.