Home / 3,420.14-4,720.83-2,004.15

Finding the Fourth Proportional to 3,420.14, 4,720.83 and 2,004.15

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Solution

The fourth proportional to 3,420.14, 4,720.83 and 2,004.15 is: 2,766.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.14 : 4,720.83 = 2,004.15 : x
  2. Step 2: Convert to fraction form
    3,420.14/4,720.83 = 2,004.15/x
  3. Step 3: Cross multiply
    3,420.14x = 4,720.83 × 2,004.15
  4. Step 4: Simplify right side
    3,420.14x = 9,461,251.44
  5. Step 5: Solve for x
    x = 9,461,251.44/3,420.14
  6. Step 6: Final answer
    x = 2,766.34

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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.