Home / 2,717.69-4,075.16-1,328.95

Finding the Fourth Proportional to 2,717.69, 4,075.16 and 1,328.95

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Solution

The fourth proportional to 2,717.69, 4,075.16 and 1,328.95 is: 1,992.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.69 : 4,075.16 = 1,328.95 : x
  2. Step 2: Convert to fraction form
    2,717.69/4,075.16 = 1,328.95/x
  3. Step 3: Cross multiply
    2,717.69x = 4,075.16 × 1,328.95
  4. Step 4: Simplify right side
    2,717.69x = 5,415,677.02
  5. Step 5: Solve for x
    x = 5,415,677.02/2,717.69
  6. Step 6: Final answer
    x = 1,992.75

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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.