Home / 3,420.12-4,719.47-2,003.64

Finding the Fourth Proportional to 3,420.12, 4,719.47 and 2,003.64

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Solution

The fourth proportional to 3,420.12, 4,719.47 and 2,003.64 is: 2,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.12 : 4,719.47 = 2,003.64 : x
  2. Step 2: Convert to fraction form
    3,420.12/4,719.47 = 2,003.64/x
  3. Step 3: Cross multiply
    3,420.12x = 4,719.47 × 2,003.64
  4. Step 4: Simplify right side
    3,420.12x = 9,456,091.15
  5. Step 5: Solve for x
    x = 9,456,091.15/3,420.12
  6. Step 6: Final answer
    x = 2,764.84

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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.