Home / 2,239.45-3,360.35-1,628.21

Finding the Fourth Proportional to 2,239.45, 3,360.35 and 1,628.21

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Solution

The fourth proportional to 2,239.45, 3,360.35 and 1,628.21 is: 2,443.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.45 : 3,360.35 = 1,628.21 : x
  2. Step 2: Convert to fraction form
    2,239.45/3,360.35 = 1,628.21/x
  3. Step 3: Cross multiply
    2,239.45x = 3,360.35 × 1,628.21
  4. Step 4: Simplify right side
    2,239.45x = 5,471,367.94
  5. Step 5: Solve for x
    x = 5,471,367.94/2,239.45
  6. Step 6: Final answer
    x = 2,443.18

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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.