Home / 3,745.49-5,167.86-2,289.90

Finding the Fourth Proportional to 3,745.49, 5,167.86 and 2,289.90

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Solution

The fourth proportional to 3,745.49, 5,167.86 and 2,289.90 is: 3,159.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.49 : 5,167.86 = 2,289.90 : x
  2. Step 2: Convert to fraction form
    3,745.49/5,167.86 = 2,289.90/x
  3. Step 3: Cross multiply
    3,745.49x = 5,167.86 × 2,289.90
  4. Step 4: Simplify right side
    3,745.49x = 11,833,871.16
  5. Step 5: Solve for x
    x = 11,833,871.16/3,745.49
  6. Step 6: Final answer
    x = 3,159.50

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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.