Home / 3,515.89-5,270.73-1,324.72

Finding the Fourth Proportional to 3,515.89, 5,270.73 and 1,324.72

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Solution

The fourth proportional to 3,515.89, 5,270.73 and 1,324.72 is: 1,985.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.89 : 5,270.73 = 1,324.72 : x
  2. Step 2: Convert to fraction form
    3,515.89/5,270.73 = 1,324.72/x
  3. Step 3: Cross multiply
    3,515.89x = 5,270.73 × 1,324.72
  4. Step 4: Simplify right side
    3,515.89x = 6,982,241.45
  5. Step 5: Solve for x
    x = 6,982,241.45/3,515.89
  6. Step 6: Final answer
    x = 1,985.91

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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.