Home / 3,515.88-5,274.34-1,324.76

Finding the Fourth Proportional to 3,515.88, 5,274.34 and 1,324.76

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Solution

The fourth proportional to 3,515.88, 5,274.34 and 1,324.76 is: 1,987.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.88 : 5,274.34 = 1,324.76 : x
  2. Step 2: Convert to fraction form
    3,515.88/5,274.34 = 1,324.76/x
  3. Step 3: Cross multiply
    3,515.88x = 5,274.34 × 1,324.76
  4. Step 4: Simplify right side
    3,515.88x = 6,987,234.66
  5. Step 5: Solve for x
    x = 6,987,234.66/3,515.88
  6. Step 6: Final answer
    x = 1,987.34

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1.5x scale

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.