Home / 2,415.07-3,334.49-1,519.21

Finding the Fourth Proportional to 2,415.07, 3,334.49 and 1,519.21

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Solution

The fourth proportional to 2,415.07, 3,334.49 and 1,519.21 is: 2,097.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.07 : 3,334.49 = 1,519.21 : x
  2. Step 2: Convert to fraction form
    2,415.07/3,334.49 = 1,519.21/x
  3. Step 3: Cross multiply
    2,415.07x = 3,334.49 × 1,519.21
  4. Step 4: Simplify right side
    2,415.07x = 5,065,790.55
  5. Step 5: Solve for x
    x = 5,065,790.55/2,415.07
  6. Step 6: Final answer
    x = 2,097.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.