Home / 3,512.66-5,264.99-1,172.12

Finding the Fourth Proportional to 3,512.66, 5,264.99 and 1,172.12

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Solution

The fourth proportional to 3,512.66, 5,264.99 and 1,172.12 is: 1,756.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.66 : 5,264.99 = 1,172.12 : x
  2. Step 2: Convert to fraction form
    3,512.66/5,264.99 = 1,172.12/x
  3. Step 3: Cross multiply
    3,512.66x = 5,264.99 × 1,172.12
  4. Step 4: Simplify right side
    3,512.66x = 6,171,173.75
  5. Step 5: Solve for x
    x = 6,171,173.75/3,512.66
  6. Step 6: Final answer
    x = 1,756.84

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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.