Home / 2,619.20-3,928.07-1,037.66

Finding the Fourth Proportional to 2,619.20, 3,928.07 and 1,037.66

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Solution

The fourth proportional to 2,619.20, 3,928.07 and 1,037.66 is: 1,556.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.20 : 3,928.07 = 1,037.66 : x
  2. Step 2: Convert to fraction form
    2,619.20/3,928.07 = 1,037.66/x
  3. Step 3: Cross multiply
    2,619.20x = 3,928.07 × 1,037.66
  4. Step 4: Simplify right side
    2,619.20x = 4,075,976.29
  5. Step 5: Solve for x
    x = 4,075,976.29/2,619.20
  6. Step 6: Final answer
    x = 1,556.19

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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.