Home / 7,681.24-11,520.60-2,749.96

Finding the Fourth Proportional to 7,681.24, 11,520.60 and 2,749.96

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Solution

The fourth proportional to 7,681.24, 11,520.60 and 2,749.96 is: 4,124.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.24 : 11,520.60 = 2,749.96 : x
  2. Step 2: Convert to fraction form
    7,681.24/11,520.60 = 2,749.96/x
  3. Step 3: Cross multiply
    7,681.24x = 11,520.60 × 2,749.96
  4. Step 4: Simplify right side
    7,681.24x = 31,681,189.18
  5. Step 5: Solve for x
    x = 31,681,189.18/7,681.24
  6. Step 6: Final answer
    x = 4,124.49

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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.