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Finding the Fourth Proportional to 2,083.09, 3,124.63 and 622.20

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Solution

The fourth proportional to 2,083.09, 3,124.63 and 622.20 is: 933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.09 : 3,124.63 = 622.20 : x
  2. Step 2: Convert to fraction form
    2,083.09/3,124.63 = 622.20/x
  3. Step 3: Cross multiply
    2,083.09x = 3,124.63 × 622.20
  4. Step 4: Simplify right side
    2,083.09x = 1,944,144.79
  5. Step 5: Solve for x
    x = 1,944,144.79/2,083.09
  6. Step 6: Final answer
    x = 933.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.