Home / 3,380.30-4,665.32-1,964.64

Finding the Fourth Proportional to 3,380.30, 4,665.32 and 1,964.64

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Solution

The fourth proportional to 3,380.30, 4,665.32 and 1,964.64 is: 2,711.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.30 : 4,665.32 = 1,964.64 : x
  2. Step 2: Convert to fraction form
    3,380.30/4,665.32 = 1,964.64/x
  3. Step 3: Cross multiply
    3,380.30x = 4,665.32 × 1,964.64
  4. Step 4: Simplify right side
    3,380.30x = 9,165,674.28
  5. Step 5: Solve for x
    x = 9,165,674.28/3,380.30
  6. Step 6: Final answer
    x = 2,711.50

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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.