Home / 3,231.28-4,846.56-1,151.20

Finding the Fourth Proportional to 3,231.28, 4,846.56 and 1,151.20

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Solution

The fourth proportional to 3,231.28, 4,846.56 and 1,151.20 is: 1,726.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.28 : 4,846.56 = 1,151.20 : x
  2. Step 2: Convert to fraction form
    3,231.28/4,846.56 = 1,151.20/x
  3. Step 3: Cross multiply
    3,231.28x = 4,846.56 × 1,151.20
  4. Step 4: Simplify right side
    3,231.28x = 5,579,359.87
  5. Step 5: Solve for x
    x = 5,579,359.87/3,231.28
  6. Step 6: Final answer
    x = 1,726.67

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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.