Home / 5,211.88-7,820.52-2,992.48

Finding the Fourth Proportional to 5,211.88, 7,820.52 and 2,992.48

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Solution

The fourth proportional to 5,211.88, 7,820.52 and 2,992.48 is: 4,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.88 : 7,820.52 = 2,992.48 : x
  2. Step 2: Convert to fraction form
    5,211.88/7,820.52 = 2,992.48/x
  3. Step 3: Cross multiply
    5,211.88x = 7,820.52 × 2,992.48
  4. Step 4: Simplify right side
    5,211.88x = 23,402,749.69
  5. Step 5: Solve for x
    x = 23,402,749.69/5,211.88
  6. Step 6: Final answer
    x = 4,490.27

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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.