Home / 2,669.63-4,005.08-1,208.39

Finding the Fourth Proportional to 2,669.63, 4,005.08 and 1,208.39

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Solution

The fourth proportional to 2,669.63, 4,005.08 and 1,208.39 is: 1,812.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.63 : 4,005.08 = 1,208.39 : x
  2. Step 2: Convert to fraction form
    2,669.63/4,005.08 = 1,208.39/x
  3. Step 3: Cross multiply
    2,669.63x = 4,005.08 × 1,208.39
  4. Step 4: Simplify right side
    2,669.63x = 4,839,677.09
  5. Step 5: Solve for x
    x = 4,839,677.09/2,669.63
  6. Step 6: Final answer
    x = 1,812.87

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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.