Home / 7,857.48-11,783.73-2,662.14

Finding the Fourth Proportional to 7,857.48, 11,783.73 and 2,662.14

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Solution

The fourth proportional to 7,857.48, 11,783.73 and 2,662.14 is: 3,992.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.48 : 11,783.73 = 2,662.14 : x
  2. Step 2: Convert to fraction form
    7,857.48/11,783.73 = 2,662.14/x
  3. Step 3: Cross multiply
    7,857.48x = 11,783.73 × 2,662.14
  4. Step 4: Simplify right side
    7,857.48x = 31,369,938.98
  5. Step 5: Solve for x
    x = 31,369,938.98/7,857.48
  6. Step 6: Final answer
    x = 3,992.37

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1.5x scale

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.