Home / 2,830.62-4,243.30-1,075.09

Finding the Fourth Proportional to 2,830.62, 4,243.30 and 1,075.09

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Solution

The fourth proportional to 2,830.62, 4,243.30 and 1,075.09 is: 1,611.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.62 : 4,243.30 = 1,075.09 : x
  2. Step 2: Convert to fraction form
    2,830.62/4,243.30 = 1,075.09/x
  3. Step 3: Cross multiply
    2,830.62x = 4,243.30 × 1,075.09
  4. Step 4: Simplify right side
    2,830.62x = 4,561,929.40
  5. Step 5: Solve for x
    x = 4,561,929.40/2,830.62
  6. Step 6: Final answer
    x = 1,611.64

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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.