Home / 1,394.36-1,926.09-1,116.59

Finding the Fourth Proportional to 1,394.36, 1,926.09 and 1,116.59

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Solution

The fourth proportional to 1,394.36, 1,926.09 and 1,116.59 is: 1,542.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.36 : 1,926.09 = 1,116.59 : x
  2. Step 2: Convert to fraction form
    1,394.36/1,926.09 = 1,116.59/x
  3. Step 3: Cross multiply
    1,394.36x = 1,926.09 × 1,116.59
  4. Step 4: Simplify right side
    1,394.36x = 2,150,643.20
  5. Step 5: Solve for x
    x = 2,150,643.20/1,394.36
  6. Step 6: Final answer
    x = 1,542.39

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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.