Home / 3,515.98-5,274.54-1,324.90

Finding the Fourth Proportional to 3,515.98, 5,274.54 and 1,324.90

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Solution

The fourth proportional to 3,515.98, 5,274.54 and 1,324.90 is: 1,987.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.98 : 5,274.54 = 1,324.90 : x
  2. Step 2: Convert to fraction form
    3,515.98/5,274.54 = 1,324.90/x
  3. Step 3: Cross multiply
    3,515.98x = 5,274.54 × 1,324.90
  4. Step 4: Simplify right side
    3,515.98x = 6,988,238.05
  5. Step 5: Solve for x
    x = 6,988,238.05/3,515.98
  6. Step 6: Final answer
    x = 1,987.56

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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.