Home / 2,723.20-4,075.20-1,859.20

Finding the Fourth Proportional to 2,723.20, 4,075.20 and 1,859.20

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Solution

The fourth proportional to 2,723.20, 4,075.20 and 1,859.20 is: 2,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,723.20 : 4,075.20 = 1,859.20 : x
  2. Step 2: Convert to fraction form
    2,723.20/4,075.20 = 1,859.20/x
  3. Step 3: Cross multiply
    2,723.20x = 4,075.20 × 1,859.20
  4. Step 4: Simplify right side
    2,723.20x = 7,576,611.84
  5. Step 5: Solve for x
    x = 7,576,611.84/2,723.20
  6. Step 6: Final answer
    x = 2,782.25

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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.