Home / 2,879.33-3,973.56-1,620.35

Finding the Fourth Proportional to 2,879.33, 3,973.56 and 1,620.35

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Solution

The fourth proportional to 2,879.33, 3,973.56 and 1,620.35 is: 2,236.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.33 : 3,973.56 = 1,620.35 : x
  2. Step 2: Convert to fraction form
    2,879.33/3,973.56 = 1,620.35/x
  3. Step 3: Cross multiply
    2,879.33x = 3,973.56 × 1,620.35
  4. Step 4: Simplify right side
    2,879.33x = 6,438,546.90
  5. Step 5: Solve for x
    x = 6,438,546.90/2,879.33
  6. Step 6: Final answer
    x = 2,236.13

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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.