Home / 3,558.78-5,338.17-1,219.02

Finding the Fourth Proportional to 3,558.78, 5,338.17 and 1,219.02

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Solution

The fourth proportional to 3,558.78, 5,338.17 and 1,219.02 is: 1,828.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.78 : 5,338.17 = 1,219.02 : x
  2. Step 2: Convert to fraction form
    3,558.78/5,338.17 = 1,219.02/x
  3. Step 3: Cross multiply
    3,558.78x = 5,338.17 × 1,219.02
  4. Step 4: Simplify right side
    3,558.78x = 6,507,335.99
  5. Step 5: Solve for x
    x = 6,507,335.99/3,558.78
  6. Step 6: Final answer
    x = 1,828.53

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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.