Home / 4,890.28-7,336.68-2,812.66

Finding the Fourth Proportional to 4,890.28, 7,336.68 and 2,812.66

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Solution

The fourth proportional to 4,890.28, 7,336.68 and 2,812.66 is: 4,219.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.28 : 7,336.68 = 2,812.66 : x
  2. Step 2: Convert to fraction form
    4,890.28/7,336.68 = 2,812.66/x
  3. Step 3: Cross multiply
    4,890.28x = 7,336.68 × 2,812.66
  4. Step 4: Simplify right side
    4,890.28x = 20,635,586.37
  5. Step 5: Solve for x
    x = 20,635,586.37/4,890.28
  6. Step 6: Final answer
    x = 4,219.71

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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.