Home / 3,405.28-5,107.84-1,096.80

Finding the Fourth Proportional to 3,405.28, 5,107.84 and 1,096.80

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Solution

The fourth proportional to 3,405.28, 5,107.84 and 1,096.80 is: 1,645.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.28 : 5,107.84 = 1,096.80 : x
  2. Step 2: Convert to fraction form
    3,405.28/5,107.84 = 1,096.80/x
  3. Step 3: Cross multiply
    3,405.28x = 5,107.84 × 1,096.80
  4. Step 4: Simplify right side
    3,405.28x = 5,602,278.91
  5. Step 5: Solve for x
    x = 5,602,278.91/3,405.28
  6. Step 6: Final answer
    x = 1,645.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.