Home / 3,420.78-4,720.71-2,241.84

Finding the Fourth Proportional to 3,420.78, 4,720.71 and 2,241.84

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Solution

The fourth proportional to 3,420.78, 4,720.71 and 2,241.84 is: 3,093.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.78 : 4,720.71 = 2,241.84 : x
  2. Step 2: Convert to fraction form
    3,420.78/4,720.71 = 2,241.84/x
  3. Step 3: Cross multiply
    3,420.78x = 4,720.71 × 2,241.84
  4. Step 4: Simplify right side
    3,420.78x = 10,583,102.62
  5. Step 5: Solve for x
    x = 10,583,102.62/3,420.78
  6. Step 6: Final answer
    x = 3,093.77

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1.5x scale

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.