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Finding the Fourth Proportional to 2,563.01, 3,835.80 and 1,639.20

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Solution

The fourth proportional to 2,563.01, 3,835.80 and 1,639.20 is: 2,453.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,563.01 : 3,835.80 = 1,639.20 : x
  2. Step 2: Convert to fraction form
    2,563.01/3,835.80 = 1,639.20/x
  3. Step 3: Cross multiply
    2,563.01x = 3,835.80 × 1,639.20
  4. Step 4: Simplify right side
    2,563.01x = 6,287,643.36
  5. Step 5: Solve for x
    x = 6,287,643.36/2,563.01
  6. Step 6: Final answer
    x = 2,453.23

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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.