Home / 5,087.60-7,628.70-2,162.60

Finding the Fourth Proportional to 5,087.60, 7,628.70 and 2,162.60

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Solution

The fourth proportional to 5,087.60, 7,628.70 and 2,162.60 is: 3,242.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.60 : 7,628.70 = 2,162.60 : x
  2. Step 2: Convert to fraction form
    5,087.60/7,628.70 = 2,162.60/x
  3. Step 3: Cross multiply
    5,087.60x = 7,628.70 × 2,162.60
  4. Step 4: Simplify right side
    5,087.60x = 16,497,826.62
  5. Step 5: Solve for x
    x = 16,497,826.62/5,087.60
  6. Step 6: Final answer
    x = 3,242.75

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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.