Home / 2,219.54-3,330.08-986.83

Finding the Fourth Proportional to 2,219.54, 3,330.08 and 986.83

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Solution

The fourth proportional to 2,219.54, 3,330.08 and 986.83 is: 1,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.54 : 3,330.08 = 986.83 : x
  2. Step 2: Convert to fraction form
    2,219.54/3,330.08 = 986.83/x
  3. Step 3: Cross multiply
    2,219.54x = 3,330.08 × 986.83
  4. Step 4: Simplify right side
    2,219.54x = 3,286,213.29
  5. Step 5: Solve for x
    x = 3,286,213.29/2,219.54
  6. Step 6: Final answer
    x = 1,480.59

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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.