Home / 3,422.06-4,721.92-2,005.64

Finding the Fourth Proportional to 3,422.06, 4,721.92 and 2,005.64

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Solution

The fourth proportional to 3,422.06, 4,721.92 and 2,005.64 is: 2,767.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.06 : 4,721.92 = 2,005.64 : x
  2. Step 2: Convert to fraction form
    3,422.06/4,721.92 = 2,005.64/x
  3. Step 3: Cross multiply
    3,422.06x = 4,721.92 × 2,005.64
  4. Step 4: Simplify right side
    3,422.06x = 9,470,471.63
  5. Step 5: Solve for x
    x = 9,470,471.63/3,422.06
  6. Step 6: Final answer
    x = 2,767.48

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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.