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Finding the Fourth Proportional to 2,635.36, 3,954.48 and 1,984.48

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Solution

The fourth proportional to 2,635.36, 3,954.48 and 1,984.48 is: 2,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.36 : 3,954.48 = 1,984.48 : x
  2. Step 2: Convert to fraction form
    2,635.36/3,954.48 = 1,984.48/x
  3. Step 3: Cross multiply
    2,635.36x = 3,954.48 × 1,984.48
  4. Step 4: Simplify right side
    2,635.36x = 7,847,586.47
  5. Step 5: Solve for x
    x = 7,847,586.47/2,635.36
  6. Step 6: Final answer
    x = 2,977.80

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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.