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Finding the Fourth Proportional to 3,920.54, 5,878.96 and 2,277.54

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Solution

The fourth proportional to 3,920.54, 5,878.96 and 2,277.54 is: 3,415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.54 : 5,878.96 = 2,277.54 : x
  2. Step 2: Convert to fraction form
    3,920.54/5,878.96 = 2,277.54/x
  3. Step 3: Cross multiply
    3,920.54x = 5,878.96 × 2,277.54
  4. Step 4: Simplify right side
    3,920.54x = 13,389,560.86
  5. Step 5: Solve for x
    x = 13,389,560.86/3,920.54
  6. Step 6: Final answer
    x = 3,415.24

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1.5x scale

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.