Home / 3,745.89-5,615.40-2,355

Finding the Fourth Proportional to 3,745.89, 5,615.40 and 2,355

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Solution

The fourth proportional to 3,745.89, 5,615.40 and 2,355 is: 3,530.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.89 : 5,615.40 = 2,355 : x
  2. Step 2: Convert to fraction form
    3,745.89/5,615.40 = 2,355/x
  3. Step 3: Cross multiply
    3,745.89x = 5,615.40 × 2,355
  4. Step 4: Simplify right side
    3,745.89x = 13,224,267
  5. Step 5: Solve for x
    x = 13,224,267/3,745.89
  6. Step 6: Final answer
    x = 3,530.34

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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.