Home / 1,187.26-1,639.25-795.43

Finding the Fourth Proportional to 1,187.26, 1,639.25 and 795.43

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Solution

The fourth proportional to 1,187.26, 1,639.25 and 795.43 is: 1,098.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187.26 : 1,639.25 = 795.43 : x
  2. Step 2: Convert to fraction form
    1,187.26/1,639.25 = 795.43/x
  3. Step 3: Cross multiply
    1,187.26x = 1,639.25 × 795.43
  4. Step 4: Simplify right side
    1,187.26x = 1,303,908.63
  5. Step 5: Solve for x
    x = 1,303,908.63/1,187.26
  6. Step 6: Final answer
    x = 1,098.25

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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.