Home / 2,218.75-3,322.44-2,153.06

Finding the Fourth Proportional to 2,218.75, 3,322.44 and 2,153.06

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Solution

The fourth proportional to 2,218.75, 3,322.44 and 2,153.06 is: 3,224.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.75 : 3,322.44 = 2,153.06 : x
  2. Step 2: Convert to fraction form
    2,218.75/3,322.44 = 2,153.06/x
  3. Step 3: Cross multiply
    2,218.75x = 3,322.44 × 2,153.06
  4. Step 4: Simplify right side
    2,218.75x = 7,153,396.05
  5. Step 5: Solve for x
    x = 7,153,396.05/2,218.75
  6. Step 6: Final answer
    x = 3,224.07

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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.