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Finding the Fourth Proportional to 1,995.78, 2,752.26 and 1,522.84

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Solution

The fourth proportional to 1,995.78, 2,752.26 and 1,522.84 is: 2,100.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.78 : 2,752.26 = 1,522.84 : x
  2. Step 2: Convert to fraction form
    1,995.78/2,752.26 = 1,522.84/x
  3. Step 3: Cross multiply
    1,995.78x = 2,752.26 × 1,522.84
  4. Step 4: Simplify right side
    1,995.78x = 4,191,251.62
  5. Step 5: Solve for x
    x = 4,191,251.62/1,995.78
  6. Step 6: Final answer
    x = 2,100.06

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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.