Home / 1,398.98-2,091.71-1,195.94

Finding the Fourth Proportional to 1,398.98, 2,091.71 and 1,195.94

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Solution

The fourth proportional to 1,398.98, 2,091.71 and 1,195.94 is: 1,788.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398.98 : 2,091.71 = 1,195.94 : x
  2. Step 2: Convert to fraction form
    1,398.98/2,091.71 = 1,195.94/x
  3. Step 3: Cross multiply
    1,398.98x = 2,091.71 × 1,195.94
  4. Step 4: Simplify right side
    1,398.98x = 2,501,552.19
  5. Step 5: Solve for x
    x = 2,501,552.19/1,398.98
  6. Step 6: Final answer
    x = 1,788.13

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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.