Home / 7,655.72-11,481.69-2,108.81

Finding the Fourth Proportional to 7,655.72, 11,481.69 and 2,108.81

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Solution

The fourth proportional to 7,655.72, 11,481.69 and 2,108.81 is: 3,162.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.72 : 11,481.69 = 2,108.81 : x
  2. Step 2: Convert to fraction form
    7,655.72/11,481.69 = 2,108.81/x
  3. Step 3: Cross multiply
    7,655.72x = 11,481.69 × 2,108.81
  4. Step 4: Simplify right side
    7,655.72x = 24,212,702.69
  5. Step 5: Solve for x
    x = 24,212,702.69/7,655.72
  6. Step 6: Final answer
    x = 3,162.69

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1.5x scale

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.