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Finding the Fourth Proportional to 2,020.08, 2,786.16 and 1,522.80

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Solution

The fourth proportional to 2,020.08, 2,786.16 and 1,522.80 is: 2,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.08 : 2,786.16 = 1,522.80 : x
  2. Step 2: Convert to fraction form
    2,020.08/2,786.16 = 1,522.80/x
  3. Step 3: Cross multiply
    2,020.08x = 2,786.16 × 1,522.80
  4. Step 4: Simplify right side
    2,020.08x = 4,242,764.45
  5. Step 5: Solve for x
    x = 4,242,764.45/2,020.08
  6. Step 6: Final answer
    x = 2,100.30

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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.