Home / 1,326.36-1,828.64-1,089.44

Finding the Fourth Proportional to 1,326.36, 1,828.64 and 1,089.44

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Solution

The fourth proportional to 1,326.36, 1,828.64 and 1,089.44 is: 1,502.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326.36 : 1,828.64 = 1,089.44 : x
  2. Step 2: Convert to fraction form
    1,326.36/1,828.64 = 1,089.44/x
  3. Step 3: Cross multiply
    1,326.36x = 1,828.64 × 1,089.44
  4. Step 4: Simplify right side
    1,326.36x = 1,992,193.56
  5. Step 5: Solve for x
    x = 1,992,193.56/1,326.36
  6. Step 6: Final answer
    x = 1,502.00

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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.