Home / 3,745.85-5,617.55-1,281.02

Finding the Fourth Proportional to 3,745.85, 5,617.55 and 1,281.02

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Solution

The fourth proportional to 3,745.85, 5,617.55 and 1,281.02 is: 1,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.85 : 5,617.55 = 1,281.02 : x
  2. Step 2: Convert to fraction form
    3,745.85/5,617.55 = 1,281.02/x
  3. Step 3: Cross multiply
    3,745.85x = 5,617.55 × 1,281.02
  4. Step 4: Simplify right side
    3,745.85x = 7,196,169.02
  5. Step 5: Solve for x
    x = 7,196,169.02/3,745.85
  6. Step 6: Final answer
    x = 1,921.11

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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.