Home / 3,075.85-4,614.38-1,128.07

Finding the Fourth Proportional to 3,075.85, 4,614.38 and 1,128.07

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Solution

The fourth proportional to 3,075.85, 4,614.38 and 1,128.07 is: 1,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.85 : 4,614.38 = 1,128.07 : x
  2. Step 2: Convert to fraction form
    3,075.85/4,614.38 = 1,128.07/x
  3. Step 3: Cross multiply
    3,075.85x = 4,614.38 × 1,128.07
  4. Step 4: Simplify right side
    3,075.85x = 5,205,342.17
  5. Step 5: Solve for x
    x = 5,205,342.17/3,075.85
  6. Step 6: Final answer
    x = 1,692.33

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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.