Home / 3,515.68-4,851.36-2,190.88

Finding the Fourth Proportional to 3,515.68, 4,851.36 and 2,190.88

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Solution

The fourth proportional to 3,515.68, 4,851.36 and 2,190.88 is: 3,023.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.68 : 4,851.36 = 2,190.88 : x
  2. Step 2: Convert to fraction form
    3,515.68/4,851.36 = 2,190.88/x
  3. Step 3: Cross multiply
    3,515.68x = 4,851.36 × 2,190.88
  4. Step 4: Simplify right side
    3,515.68x = 10,628,747.60
  5. Step 5: Solve for x
    x = 10,628,747.60/3,515.68
  6. Step 6: Final answer
    x = 3,023.24

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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.