Home / 1,368.11-2,042.22-1,266.59

Finding the Fourth Proportional to 1,368.11, 2,042.22 and 1,266.59

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Solution

The fourth proportional to 1,368.11, 2,042.22 and 1,266.59 is: 1,890.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.11 : 2,042.22 = 1,266.59 : x
  2. Step 2: Convert to fraction form
    1,368.11/2,042.22 = 1,266.59/x
  3. Step 3: Cross multiply
    1,368.11x = 2,042.22 × 1,266.59
  4. Step 4: Simplify right side
    1,368.11x = 2,586,645.22
  5. Step 5: Solve for x
    x = 2,586,645.22/1,368.11
  6. Step 6: Final answer
    x = 1,890.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.