Home / 3,211.17-4,821.53-1,975.02

Finding the Fourth Proportional to 3,211.17, 4,821.53 and 1,975.02

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Solution

The fourth proportional to 3,211.17, 4,821.53 and 1,975.02 is: 2,965.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.17 : 4,821.53 = 1,975.02 : x
  2. Step 2: Convert to fraction form
    3,211.17/4,821.53 = 1,975.02/x
  3. Step 3: Cross multiply
    3,211.17x = 4,821.53 × 1,975.02
  4. Step 4: Simplify right side
    3,211.17x = 9,522,608.31
  5. Step 5: Solve for x
    x = 9,522,608.31/3,211.17
  6. Step 6: Final answer
    x = 2,965.46

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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.