Home / 3,480.62-5,215.46-2,090.66

Finding the Fourth Proportional to 3,480.62, 5,215.46 and 2,090.66

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Solution

The fourth proportional to 3,480.62, 5,215.46 and 2,090.66 is: 3,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.62 : 5,215.46 = 2,090.66 : x
  2. Step 2: Convert to fraction form
    3,480.62/5,215.46 = 2,090.66/x
  3. Step 3: Cross multiply
    3,480.62x = 5,215.46 × 2,090.66
  4. Step 4: Simplify right side
    3,480.62x = 10,903,717.07
  5. Step 5: Solve for x
    x = 10,903,717.07/3,480.62
  6. Step 6: Final answer
    x = 3,132.70

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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.