Home / 1,980.95-2,733.39-1,184.54

Finding the Fourth Proportional to 1,980.95, 2,733.39 and 1,184.54

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Solution

The fourth proportional to 1,980.95, 2,733.39 and 1,184.54 is: 1,634.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980.95 : 2,733.39 = 1,184.54 : x
  2. Step 2: Convert to fraction form
    1,980.95/2,733.39 = 1,184.54/x
  3. Step 3: Cross multiply
    1,980.95x = 2,733.39 × 1,184.54
  4. Step 4: Simplify right side
    1,980.95x = 3,237,796.12
  5. Step 5: Solve for x
    x = 3,237,796.12/1,980.95
  6. Step 6: Final answer
    x = 1,634.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.