Home / 2,515.68-3,469.35-1,571.55

Finding the Fourth Proportional to 2,515.68, 3,469.35 and 1,571.55

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Solution

The fourth proportional to 2,515.68, 3,469.35 and 1,571.55 is: 2,167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.68 : 3,469.35 = 1,571.55 : x
  2. Step 2: Convert to fraction form
    2,515.68/3,469.35 = 1,571.55/x
  3. Step 3: Cross multiply
    2,515.68x = 3,469.35 × 1,571.55
  4. Step 4: Simplify right side
    2,515.68x = 5,452,256.99
  5. Step 5: Solve for x
    x = 5,452,256.99/2,515.68
  6. Step 6: Final answer
    x = 2,167.31

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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.