Home / 3,512.14-5,270.55-1,320.94

Finding the Fourth Proportional to 3,512.14, 5,270.55 and 1,320.94

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Solution

The fourth proportional to 3,512.14, 5,270.55 and 1,320.94 is: 1,982.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.14 : 5,270.55 = 1,320.94 : x
  2. Step 2: Convert to fraction form
    3,512.14/5,270.55 = 1,320.94/x
  3. Step 3: Cross multiply
    3,512.14x = 5,270.55 × 1,320.94
  4. Step 4: Simplify right side
    3,512.14x = 6,962,080.32
  5. Step 5: Solve for x
    x = 6,962,080.32/3,512.14
  6. Step 6: Final answer
    x = 1,982.29

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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.