Home / 5,431.08-8,146.76-2,511.84

Finding the Fourth Proportional to 5,431.08, 8,146.76 and 2,511.84

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Solution

The fourth proportional to 5,431.08, 8,146.76 and 2,511.84 is: 3,767.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.08 : 8,146.76 = 2,511.84 : x
  2. Step 2: Convert to fraction form
    5,431.08/8,146.76 = 2,511.84/x
  3. Step 3: Cross multiply
    5,431.08x = 8,146.76 × 2,511.84
  4. Step 4: Simplify right side
    5,431.08x = 20,463,357.64
  5. Step 5: Solve for x
    x = 20,463,357.64/5,431.08
  6. Step 6: Final answer
    x = 3,767.82

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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.