Home / 1,216.34-1,824.45-1,080.94

Finding the Fourth Proportional to 1,216.34, 1,824.45 and 1,080.94

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Solution

The fourth proportional to 1,216.34, 1,824.45 and 1,080.94 is: 1,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.34 : 1,824.45 = 1,080.94 : x
  2. Step 2: Convert to fraction form
    1,216.34/1,824.45 = 1,080.94/x
  3. Step 3: Cross multiply
    1,216.34x = 1,824.45 × 1,080.94
  4. Step 4: Simplify right side
    1,216.34x = 1,972,112.37
  5. Step 5: Solve for x
    x = 1,972,112.37/1,216.34
  6. Step 6: Final answer
    x = 1,621.35

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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.