Home / 3,618.93-5,427.79-1,643.95

Finding the Fourth Proportional to 3,618.93, 5,427.79 and 1,643.95

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Solution

The fourth proportional to 3,618.93, 5,427.79 and 1,643.95 is: 2,465.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.93 : 5,427.79 = 1,643.95 : x
  2. Step 2: Convert to fraction form
    3,618.93/5,427.79 = 1,643.95/x
  3. Step 3: Cross multiply
    3,618.93x = 5,427.79 × 1,643.95
  4. Step 4: Simplify right side
    3,618.93x = 8,922,997.69
  5. Step 5: Solve for x
    x = 8,922,997.69/3,618.93
  6. Step 6: Final answer
    x = 2,465.65

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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.