Home / 2,623.25-3,620.09-1,428.23

Finding the Fourth Proportional to 2,623.25, 3,620.09 and 1,428.23

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Solution

The fourth proportional to 2,623.25, 3,620.09 and 1,428.23 is: 1,970.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,623.25 : 3,620.09 = 1,428.23 : x
  2. Step 2: Convert to fraction form
    2,623.25/3,620.09 = 1,428.23/x
  3. Step 3: Cross multiply
    2,623.25x = 3,620.09 × 1,428.23
  4. Step 4: Simplify right side
    2,623.25x = 5,170,321.14
  5. Step 5: Solve for x
    x = 5,170,321.14/2,623.25
  6. Step 6: Final answer
    x = 1,970.96

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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.