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Finding the Fourth Proportional to 2,216.56, 3,321.60 and 1,973.56

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Solution

The fourth proportional to 2,216.56, 3,321.60 and 1,973.56 is: 2,957.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.56 : 3,321.60 = 1,973.56 : x
  2. Step 2: Convert to fraction form
    2,216.56/3,321.60 = 1,973.56/x
  3. Step 3: Cross multiply
    2,216.56x = 3,321.60 × 1,973.56
  4. Step 4: Simplify right side
    2,216.56x = 6,555,376.90
  5. Step 5: Solve for x
    x = 6,555,376.90/2,216.56
  6. Step 6: Final answer
    x = 2,957.46

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1.5x scale

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.