Home / 2,218.73-3,325.05-1,120.37

Finding the Fourth Proportional to 2,218.73, 3,325.05 and 1,120.37

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Solution

The fourth proportional to 2,218.73, 3,325.05 and 1,120.37 is: 1,679.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.73 : 3,325.05 = 1,120.37 : x
  2. Step 2: Convert to fraction form
    2,218.73/3,325.05 = 1,120.37/x
  3. Step 3: Cross multiply
    2,218.73x = 3,325.05 × 1,120.37
  4. Step 4: Simplify right side
    2,218.73x = 3,725,269.64
  5. Step 5: Solve for x
    x = 3,725,269.64/2,218.73
  6. Step 6: Final answer
    x = 1,679.01

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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.