Home / 3,154.28-4,727.36-1,306.67

Finding the Fourth Proportional to 3,154.28, 4,727.36 and 1,306.67

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Solution

The fourth proportional to 3,154.28, 4,727.36 and 1,306.67 is: 1,958.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.28 : 4,727.36 = 1,306.67 : x
  2. Step 2: Convert to fraction form
    3,154.28/4,727.36 = 1,306.67/x
  3. Step 3: Cross multiply
    3,154.28x = 4,727.36 × 1,306.67
  4. Step 4: Simplify right side
    3,154.28x = 6,177,079.12
  5. Step 5: Solve for x
    x = 6,177,079.12/3,154.28
  6. Step 6: Final answer
    x = 1,958.32

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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.