Home / 2,619.52-3,615.36-1,571.80

Finding the Fourth Proportional to 2,619.52, 3,615.36 and 1,571.80

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Solution

The fourth proportional to 2,619.52, 3,615.36 and 1,571.80 is: 2,169.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.52 : 3,615.36 = 1,571.80 : x
  2. Step 2: Convert to fraction form
    2,619.52/3,615.36 = 1,571.80/x
  3. Step 3: Cross multiply
    2,619.52x = 3,615.36 × 1,571.80
  4. Step 4: Simplify right side
    2,619.52x = 5,682,622.85
  5. Step 5: Solve for x
    x = 5,682,622.85/2,619.52
  6. Step 6: Final answer
    x = 2,169.34

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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.