Home / 7,890.68-11,836.68-2,624.60

Finding the Fourth Proportional to 7,890.68, 11,836.68 and 2,624.60

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Solution

The fourth proportional to 7,890.68, 11,836.68 and 2,624.60 is: 3,937.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.68 : 11,836.68 = 2,624.60 : x
  2. Step 2: Convert to fraction form
    7,890.68/11,836.68 = 2,624.60/x
  3. Step 3: Cross multiply
    7,890.68x = 11,836.68 × 2,624.60
  4. Step 4: Simplify right side
    7,890.68x = 31,066,550.33
  5. Step 5: Solve for x
    x = 31,066,550.33/7,890.68
  6. Step 6: Final answer
    x = 3,937.12

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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.