Home / 2,218.03-3,326.33-986.54

Finding the Fourth Proportional to 2,218.03, 3,326.33 and 986.54

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Solution

The fourth proportional to 2,218.03, 3,326.33 and 986.54 is: 1,479.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.03 : 3,326.33 = 986.54 : x
  2. Step 2: Convert to fraction form
    2,218.03/3,326.33 = 986.54/x
  3. Step 3: Cross multiply
    2,218.03x = 3,326.33 × 986.54
  4. Step 4: Simplify right side
    2,218.03x = 3,281,543.43
  5. Step 5: Solve for x
    x = 3,281,543.43/2,218.03
  6. Step 6: Final answer
    x = 1,479.49

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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.