Home / 2,538.99-3,809.70-1,239.75

Finding the Fourth Proportional to 2,538.99, 3,809.70 and 1,239.75

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Solution

The fourth proportional to 2,538.99, 3,809.70 and 1,239.75 is: 1,860.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,538.99 : 3,809.70 = 1,239.75 : x
  2. Step 2: Convert to fraction form
    2,538.99/3,809.70 = 1,239.75/x
  3. Step 3: Cross multiply
    2,538.99x = 3,809.70 × 1,239.75
  4. Step 4: Simplify right side
    2,538.99x = 4,723,075.58
  5. Step 5: Solve for x
    x = 4,723,075.58/2,538.99
  6. Step 6: Final answer
    x = 1,860.22

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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.