Home / 3,213.67-4,825.28-1,977.52

Finding the Fourth Proportional to 3,213.67, 4,825.28 and 1,977.52

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Solution

The fourth proportional to 3,213.67, 4,825.28 and 1,977.52 is: 2,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.67 : 4,825.28 = 1,977.52 : x
  2. Step 2: Convert to fraction form
    3,213.67/4,825.28 = 1,977.52/x
  3. Step 3: Cross multiply
    3,213.67x = 4,825.28 × 1,977.52
  4. Step 4: Simplify right side
    3,213.67x = 9,542,087.71
  5. Step 5: Solve for x
    x = 9,542,087.71/3,213.67
  6. Step 6: Final answer
    x = 2,969.22

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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.