Home / 2,218.37-3,327.53-985.43

Finding the Fourth Proportional to 2,218.37, 3,327.53 and 985.43

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Solution

The fourth proportional to 2,218.37, 3,327.53 and 985.43 is: 1,478.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.37 : 3,327.53 = 985.43 : x
  2. Step 2: Convert to fraction form
    2,218.37/3,327.53 = 985.43/x
  3. Step 3: Cross multiply
    2,218.37x = 3,327.53 × 985.43
  4. Step 4: Simplify right side
    2,218.37x = 3,279,051.28
  5. Step 5: Solve for x
    x = 3,279,051.28/2,218.37
  6. Step 6: Final answer
    x = 1,478.14

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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.