Home / 5,491-8,237.58-2,815.84

Finding the Fourth Proportional to 5,491, 8,237.58 and 2,815.84

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Solution

The fourth proportional to 5,491, 8,237.58 and 2,815.84 is: 4,224.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491 : 8,237.58 = 2,815.84 : x
  2. Step 2: Convert to fraction form
    5,491/8,237.58 = 2,815.84/x
  3. Step 3: Cross multiply
    5,491x = 8,237.58 × 2,815.84
  4. Step 4: Simplify right side
    5,491x = 23,195,707.27
  5. Step 5: Solve for x
    x = 23,195,707.27/5,491
  6. Step 6: Final answer
    x = 4,224.31

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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.