Home / 4,778.10-7,167.21-1,491.23

Finding the Fourth Proportional to 4,778.10, 7,167.21 and 1,491.23

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Solution

The fourth proportional to 4,778.10, 7,167.21 and 1,491.23 is: 2,236.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.10 : 7,167.21 = 1,491.23 : x
  2. Step 2: Convert to fraction form
    4,778.10/7,167.21 = 1,491.23/x
  3. Step 3: Cross multiply
    4,778.10x = 7,167.21 × 1,491.23
  4. Step 4: Simplify right side
    4,778.10x = 10,687,922.73
  5. Step 5: Solve for x
    x = 10,687,922.73/4,778.10
  6. Step 6: Final answer
    x = 2,236.86

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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.