Home / 3,684.69-5,526.09-1,218.78

Finding the Fourth Proportional to 3,684.69, 5,526.09 and 1,218.78

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Solution

The fourth proportional to 3,684.69, 5,526.09 and 1,218.78 is: 1,827.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,684.69 : 5,526.09 = 1,218.78 : x
  2. Step 2: Convert to fraction form
    3,684.69/5,526.09 = 1,218.78/x
  3. Step 3: Cross multiply
    3,684.69x = 5,526.09 × 1,218.78
  4. Step 4: Simplify right side
    3,684.69x = 6,735,087.97
  5. Step 5: Solve for x
    x = 6,735,087.97/3,684.69
  6. Step 6: Final answer
    x = 1,827.86

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1.5x scale

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.