Home / 5,231.50-7,220.79-2,994.08

Finding the Fourth Proportional to 5,231.50, 7,220.79 and 2,994.08

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Solution

The fourth proportional to 5,231.50, 7,220.79 and 2,994.08 is: 4,132.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.50 : 7,220.79 = 2,994.08 : x
  2. Step 2: Convert to fraction form
    5,231.50/7,220.79 = 2,994.08/x
  3. Step 3: Cross multiply
    5,231.50x = 7,220.79 × 2,994.08
  4. Step 4: Simplify right side
    5,231.50x = 21,619,586.82
  5. Step 5: Solve for x
    x = 21,619,586.82/5,231.50
  6. Step 6: Final answer
    x = 4,132.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.