Home / 3,420.54-4,720.38-2,003.92

Finding the Fourth Proportional to 3,420.54, 4,720.38 and 2,003.92

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Solution

The fourth proportional to 3,420.54, 4,720.38 and 2,003.92 is: 2,765.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.54 : 4,720.38 = 2,003.92 : x
  2. Step 2: Convert to fraction form
    3,420.54/4,720.38 = 2,003.92/x
  3. Step 3: Cross multiply
    3,420.54x = 4,720.38 × 2,003.92
  4. Step 4: Simplify right side
    3,420.54x = 9,459,263.89
  5. Step 5: Solve for x
    x = 9,459,263.89/3,420.54
  6. Step 6: Final answer
    x = 2,765.43

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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.