Home / 3,415.28-5,122.92-1,106.96

Finding the Fourth Proportional to 3,415.28, 5,122.92 and 1,106.96

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Solution

The fourth proportional to 3,415.28, 5,122.92 and 1,106.96 is: 1,660.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.28 : 5,122.92 = 1,106.96 : x
  2. Step 2: Convert to fraction form
    3,415.28/5,122.92 = 1,106.96/x
  3. Step 3: Cross multiply
    3,415.28x = 5,122.92 × 1,106.96
  4. Step 4: Simplify right side
    3,415.28x = 5,670,867.52
  5. Step 5: Solve for x
    x = 5,670,867.52/3,415.28
  6. Step 6: Final answer
    x = 1,660.44

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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.