Home / 7,814.78-11,719.73-2,268.51

Finding the Fourth Proportional to 7,814.78, 11,719.73 and 2,268.51

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Solution

The fourth proportional to 7,814.78, 11,719.73 and 2,268.51 is: 3,402.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.78 : 11,719.73 = 2,268.51 : x
  2. Step 2: Convert to fraction form
    7,814.78/11,719.73 = 2,268.51/x
  3. Step 3: Cross multiply
    7,814.78x = 11,719.73 × 2,268.51
  4. Step 4: Simplify right side
    7,814.78x = 26,586,313.36
  5. Step 5: Solve for x
    x = 26,586,313.36/7,814.78
  6. Step 6: Final answer
    x = 3,402.05

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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.