Home / 3,515.64-5,270.70-1,324.11

Finding the Fourth Proportional to 3,515.64, 5,270.70 and 1,324.11

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Solution

The fourth proportional to 3,515.64, 5,270.70 and 1,324.11 is: 1,985.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.64 : 5,270.70 = 1,324.11 : x
  2. Step 2: Convert to fraction form
    3,515.64/5,270.70 = 1,324.11/x
  3. Step 3: Cross multiply
    3,515.64x = 5,270.70 × 1,324.11
  4. Step 4: Simplify right side
    3,515.64x = 6,978,986.58
  5. Step 5: Solve for x
    x = 6,978,986.58/3,515.64
  6. Step 6: Final answer
    x = 1,985.13

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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.