Home / 5,475.75-8,211.69-2,187.96

Finding the Fourth Proportional to 5,475.75, 8,211.69 and 2,187.96

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Solution

The fourth proportional to 5,475.75, 8,211.69 and 2,187.96 is: 3,281.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.75 : 8,211.69 = 2,187.96 : x
  2. Step 2: Convert to fraction form
    5,475.75/8,211.69 = 2,187.96/x
  3. Step 3: Cross multiply
    5,475.75x = 8,211.69 × 2,187.96
  4. Step 4: Simplify right side
    5,475.75x = 17,966,849.25
  5. Step 5: Solve for x
    x = 17,966,849.25/5,475.75
  6. Step 6: Final answer
    x = 3,281.17

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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.