Home / 3,561.63-5,338.87-1,220.04

Finding the Fourth Proportional to 3,561.63, 5,338.87 and 1,220.04

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Solution

The fourth proportional to 3,561.63, 5,338.87 and 1,220.04 is: 1,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.63 : 5,338.87 = 1,220.04 : x
  2. Step 2: Convert to fraction form
    3,561.63/5,338.87 = 1,220.04/x
  3. Step 3: Cross multiply
    3,561.63x = 5,338.87 × 1,220.04
  4. Step 4: Simplify right side
    3,561.63x = 6,513,634.95
  5. Step 5: Solve for x
    x = 6,513,634.95/3,561.63
  6. Step 6: Final answer
    x = 1,828.84

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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.