Home / 2,075.04-3,112.56-920.52

Finding the Fourth Proportional to 2,075.04, 3,112.56 and 920.52

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Solution

The fourth proportional to 2,075.04, 3,112.56 and 920.52 is: 1,380.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.04 : 3,112.56 = 920.52 : x
  2. Step 2: Convert to fraction form
    2,075.04/3,112.56 = 920.52/x
  3. Step 3: Cross multiply
    2,075.04x = 3,112.56 × 920.52
  4. Step 4: Simplify right side
    2,075.04x = 2,865,173.73
  5. Step 5: Solve for x
    x = 2,865,173.73/2,075.04
  6. Step 6: Final answer
    x = 1,380.78

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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.