Home / 2,718.14-4,075.79-1,329.39

Finding the Fourth Proportional to 2,718.14, 4,075.79 and 1,329.39

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Solution

The fourth proportional to 2,718.14, 4,075.79 and 1,329.39 is: 1,993.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.14 : 4,075.79 = 1,329.39 : x
  2. Step 2: Convert to fraction form
    2,718.14/4,075.79 = 1,329.39/x
  3. Step 3: Cross multiply
    2,718.14x = 4,075.79 × 1,329.39
  4. Step 4: Simplify right side
    2,718.14x = 5,418,307.82
  5. Step 5: Solve for x
    x = 5,418,307.82/2,718.14
  6. Step 6: Final answer
    x = 1,993.39

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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.