Home / 3,947.85-5,448.74-2,354.60

Finding the Fourth Proportional to 3,947.85, 5,448.74 and 2,354.60

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Solution

The fourth proportional to 3,947.85, 5,448.74 and 2,354.60 is: 3,249.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.85 : 5,448.74 = 2,354.60 : x
  2. Step 2: Convert to fraction form
    3,947.85/5,448.74 = 2,354.60/x
  3. Step 3: Cross multiply
    3,947.85x = 5,448.74 × 2,354.60
  4. Step 4: Simplify right side
    3,947.85x = 12,829,564.19
  5. Step 5: Solve for x
    x = 12,829,564.19/3,947.85
  6. Step 6: Final answer
    x = 3,249.76

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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.