Home / 2,636.36-3,635.81-2,187.51

Finding the Fourth Proportional to 2,636.36, 3,635.81 and 2,187.51

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Solution

The fourth proportional to 2,636.36, 3,635.81 and 2,187.51 is: 3,016.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.36 : 3,635.81 = 2,187.51 : x
  2. Step 2: Convert to fraction form
    2,636.36/3,635.81 = 2,187.51/x
  3. Step 3: Cross multiply
    2,636.36x = 3,635.81 × 2,187.51
  4. Step 4: Simplify right side
    2,636.36x = 7,953,390.45
  5. Step 5: Solve for x
    x = 7,953,390.45/2,636.36
  6. Step 6: Final answer
    x = 3,016.81

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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.