Home / 5,491.17-8,212.46-4,878.81

Finding the Fourth Proportional to 5,491.17, 8,212.46 and 4,878.81

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Solution

The fourth proportional to 5,491.17, 8,212.46 and 4,878.81 is: 7,296.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.17 : 8,212.46 = 4,878.81 : x
  2. Step 2: Convert to fraction form
    5,491.17/8,212.46 = 4,878.81/x
  3. Step 3: Cross multiply
    5,491.17x = 8,212.46 × 4,878.81
  4. Step 4: Simplify right side
    5,491.17x = 40,067,007.58
  5. Step 5: Solve for x
    x = 40,067,007.58/5,491.17
  6. Step 6: Final answer
    x = 7,296.62

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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.