Home / 1,636.09-2,454.14-403.49

Finding the Fourth Proportional to 1,636.09, 2,454.14 and 403.49

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Solution

The fourth proportional to 1,636.09, 2,454.14 and 403.49 is: 605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.09 : 2,454.14 = 403.49 : x
  2. Step 2: Convert to fraction form
    1,636.09/2,454.14 = 403.49/x
  3. Step 3: Cross multiply
    1,636.09x = 2,454.14 × 403.49
  4. Step 4: Simplify right side
    1,636.09x = 990,228.09
  5. Step 5: Solve for x
    x = 990,228.09/1,636.09
  6. Step 6: Final answer
    x = 605.24

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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.