Home / 2,762.21-4,144.93-1,981.37

Finding the Fourth Proportional to 2,762.21, 4,144.93 and 1,981.37

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Solution

The fourth proportional to 2,762.21, 4,144.93 and 1,981.37 is: 2,973.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.21 : 4,144.93 = 1,981.37 : x
  2. Step 2: Convert to fraction form
    2,762.21/4,144.93 = 1,981.37/x
  3. Step 3: Cross multiply
    2,762.21x = 4,144.93 × 1,981.37
  4. Step 4: Simplify right side
    2,762.21x = 8,212,619.23
  5. Step 5: Solve for x
    x = 8,212,619.23/2,762.21
  6. Step 6: Final answer
    x = 2,973.21

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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.