Home / 5,075.88-7,611.90-2,155.56

Finding the Fourth Proportional to 5,075.88, 7,611.90 and 2,155.56

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Solution

The fourth proportional to 5,075.88, 7,611.90 and 2,155.56 is: 3,232.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.88 : 7,611.90 = 2,155.56 : x
  2. Step 2: Convert to fraction form
    5,075.88/7,611.90 = 2,155.56/x
  3. Step 3: Cross multiply
    5,075.88x = 7,611.90 × 2,155.56
  4. Step 4: Simplify right side
    5,075.88x = 16,407,907.16
  5. Step 5: Solve for x
    x = 16,407,907.16/5,075.88
  6. Step 6: Final answer
    x = 3,232.52

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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.