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Finding the Fourth Proportional to 3,995.10, 5,991.48 and 1,913.94

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Solution

The fourth proportional to 3,995.10, 5,991.48 and 1,913.94 is: 2,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.10 : 5,991.48 = 1,913.94 : x
  2. Step 2: Convert to fraction form
    3,995.10/5,991.48 = 1,913.94/x
  3. Step 3: Cross multiply
    3,995.10x = 5,991.48 × 1,913.94
  4. Step 4: Simplify right side
    3,995.10x = 11,467,333.23
  5. Step 5: Solve for x
    x = 11,467,333.23/3,995.10
  6. Step 6: Final answer
    x = 2,870.35

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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.