Home / 2,075.14-3,110.84-757.98

Finding the Fourth Proportional to 2,075.14, 3,110.84 and 757.98

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Solution

The fourth proportional to 2,075.14, 3,110.84 and 757.98 is: 1,136.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.14 : 3,110.84 = 757.98 : x
  2. Step 2: Convert to fraction form
    2,075.14/3,110.84 = 757.98/x
  3. Step 3: Cross multiply
    2,075.14x = 3,110.84 × 757.98
  4. Step 4: Simplify right side
    2,075.14x = 2,357,938.95
  5. Step 5: Solve for x
    x = 2,357,938.95/2,075.14
  6. Step 6: Final answer
    x = 1,136.28

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1.5x scale

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.