Home / 3,420.75-4,720.36-2,004.25

Finding the Fourth Proportional to 3,420.75, 4,720.36 and 2,004.25

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Solution

The fourth proportional to 3,420.75, 4,720.36 and 2,004.25 is: 2,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.75 : 4,720.36 = 2,004.25 : x
  2. Step 2: Convert to fraction form
    3,420.75/4,720.36 = 2,004.25/x
  3. Step 3: Cross multiply
    3,420.75x = 4,720.36 × 2,004.25
  4. Step 4: Simplify right side
    3,420.75x = 9,460,788.32
  5. Step 5: Solve for x
    x = 9,460,788.32/3,420.75
  6. Step 6: Final answer
    x = 2,765.70

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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.