Home / 2,038.08-2,812.23-1,198.65

Finding the Fourth Proportional to 2,038.08, 2,812.23 and 1,198.65

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Solution

The fourth proportional to 2,038.08, 2,812.23 and 1,198.65 is: 1,653.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.08 : 2,812.23 = 1,198.65 : x
  2. Step 2: Convert to fraction form
    2,038.08/2,812.23 = 1,198.65/x
  3. Step 3: Cross multiply
    2,038.08x = 2,812.23 × 1,198.65
  4. Step 4: Simplify right side
    2,038.08x = 3,370,879.49
  5. Step 5: Solve for x
    x = 3,370,879.49/2,038.08
  6. Step 6: Final answer
    x = 1,653.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.