Home / 1,636.21-2,436.99-1,628.24

Finding the Fourth Proportional to 1,636.21, 2,436.99 and 1,628.24

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Solution

The fourth proportional to 1,636.21, 2,436.99 and 1,628.24 is: 2,425.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.21 : 2,436.99 = 1,628.24 : x
  2. Step 2: Convert to fraction form
    1,636.21/2,436.99 = 1,628.24/x
  3. Step 3: Cross multiply
    1,636.21x = 2,436.99 × 1,628.24
  4. Step 4: Simplify right side
    1,636.21x = 3,968,004.60
  5. Step 5: Solve for x
    x = 3,968,004.60/1,636.21
  6. Step 6: Final answer
    x = 2,425.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.