Home / 3,871.03-5,342.04-2,102.63

Finding the Fourth Proportional to 3,871.03, 5,342.04 and 2,102.63

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Solution

The fourth proportional to 3,871.03, 5,342.04 and 2,102.63 is: 2,901.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.03 : 5,342.04 = 2,102.63 : x
  2. Step 2: Convert to fraction form
    3,871.03/5,342.04 = 2,102.63/x
  3. Step 3: Cross multiply
    3,871.03x = 5,342.04 × 2,102.63
  4. Step 4: Simplify right side
    3,871.03x = 11,232,333.57
  5. Step 5: Solve for x
    x = 11,232,333.57/3,871.03
  6. Step 6: Final answer
    x = 2,901.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.