Home / 5,454-8,181.72-2,680.56

Finding the Fourth Proportional to 5,454, 8,181.72 and 2,680.56

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Solution

The fourth proportional to 5,454, 8,181.72 and 2,680.56 is: 4,021.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454 : 8,181.72 = 2,680.56 : x
  2. Step 2: Convert to fraction form
    5,454/8,181.72 = 2,680.56/x
  3. Step 3: Cross multiply
    5,454x = 8,181.72 × 2,680.56
  4. Step 4: Simplify right side
    5,454x = 21,931,591.36
  5. Step 5: Solve for x
    x = 21,931,591.36/5,454
  6. Step 6: Final answer
    x = 4,021.19

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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.