Home / 2,028.08-2,798.59-1,188.65

Finding the Fourth Proportional to 2,028.08, 2,798.59 and 1,188.65

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Solution

The fourth proportional to 2,028.08, 2,798.59 and 1,188.65 is: 1,640.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,028.08 : 2,798.59 = 1,188.65 : x
  2. Step 2: Convert to fraction form
    2,028.08/2,798.59 = 1,188.65/x
  3. Step 3: Cross multiply
    2,028.08x = 2,798.59 × 1,188.65
  4. Step 4: Simplify right side
    2,028.08x = 3,326,544.00
  5. Step 5: Solve for x
    x = 3,326,544.00/2,028.08
  6. Step 6: Final answer
    x = 1,640.24

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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.