Home / 1,391.97-2,075.49-1,367.37

Finding the Fourth Proportional to 1,391.97, 2,075.49 and 1,367.37

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Solution

The fourth proportional to 1,391.97, 2,075.49 and 1,367.37 is: 2,038.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391.97 : 2,075.49 = 1,367.37 : x
  2. Step 2: Convert to fraction form
    1,391.97/2,075.49 = 1,367.37/x
  3. Step 3: Cross multiply
    1,391.97x = 2,075.49 × 1,367.37
  4. Step 4: Simplify right side
    1,391.97x = 2,837,966.18
  5. Step 5: Solve for x
    x = 2,837,966.18/1,391.97
  6. Step 6: Final answer
    x = 2,038.81

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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.