Home / 7,917.40-11,878.14-2,370.62

Finding the Fourth Proportional to 7,917.40, 11,878.14 and 2,370.62

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Solution

The fourth proportional to 7,917.40, 11,878.14 and 2,370.62 is: 3,556.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.40 : 11,878.14 = 2,370.62 : x
  2. Step 2: Convert to fraction form
    7,917.40/11,878.14 = 2,370.62/x
  3. Step 3: Cross multiply
    7,917.40x = 11,878.14 × 2,370.62
  4. Step 4: Simplify right side
    7,917.40x = 28,158,528.02
  5. Step 5: Solve for x
    x = 28,158,528.02/7,917.40
  6. Step 6: Final answer
    x = 3,556.54

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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.