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Finding the Fourth Proportional to 3,980.34, 5,971.16 and 1,348.01

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Solution

The fourth proportional to 3,980.34, 5,971.16 and 1,348.01 is: 2,022.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.34 : 5,971.16 = 1,348.01 : x
  2. Step 2: Convert to fraction form
    3,980.34/5,971.16 = 1,348.01/x
  3. Step 3: Cross multiply
    3,980.34x = 5,971.16 × 1,348.01
  4. Step 4: Simplify right side
    3,980.34x = 8,049,146.80
  5. Step 5: Solve for x
    x = 8,049,146.80/3,980.34
  6. Step 6: Final answer
    x = 2,022.23

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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.