Home / 3,742.31-5,165.09-2,149.89

Finding the Fourth Proportional to 3,742.31, 5,165.09 and 2,149.89

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Solution

The fourth proportional to 3,742.31, 5,165.09 and 2,149.89 is: 2,967.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.31 : 5,165.09 = 2,149.89 : x
  2. Step 2: Convert to fraction form
    3,742.31/5,165.09 = 2,149.89/x
  3. Step 3: Cross multiply
    3,742.31x = 5,165.09 × 2,149.89
  4. Step 4: Simplify right side
    3,742.31x = 11,104,364.59
  5. Step 5: Solve for x
    x = 11,104,364.59/3,742.31
  6. Step 6: Final answer
    x = 2,967.25

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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.