Home / 5,491.45-7,578.23-3,068.81

Finding the Fourth Proportional to 5,491.45, 7,578.23 and 3,068.81

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Solution

The fourth proportional to 5,491.45, 7,578.23 and 3,068.81 is: 4,234.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.45 : 7,578.23 = 3,068.81 : x
  2. Step 2: Convert to fraction form
    5,491.45/7,578.23 = 3,068.81/x
  3. Step 3: Cross multiply
    5,491.45x = 7,578.23 × 3,068.81
  4. Step 4: Simplify right side
    5,491.45x = 23,256,174.62
  5. Step 5: Solve for x
    x = 23,256,174.62/5,491.45
  6. Step 6: Final answer
    x = 4,234.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.