Home / 1,326.88-1,986.66-1,001.26

Finding the Fourth Proportional to 1,326.88, 1,986.66 and 1,001.26

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Solution

The fourth proportional to 1,326.88, 1,986.66 and 1,001.26 is: 1,499.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326.88 : 1,986.66 = 1,001.26 : x
  2. Step 2: Convert to fraction form
    1,326.88/1,986.66 = 1,001.26/x
  3. Step 3: Cross multiply
    1,326.88x = 1,986.66 × 1,001.26
  4. Step 4: Simplify right side
    1,326.88x = 1,989,163.19
  5. Step 5: Solve for x
    x = 1,989,163.19/1,326.88
  6. Step 6: Final answer
    x = 1,499.13

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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.