Home / 3,456.51-5,186.29-1,812.66

Finding the Fourth Proportional to 3,456.51, 5,186.29 and 1,812.66

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Solution

The fourth proportional to 3,456.51, 5,186.29 and 1,812.66 is: 2,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.51 : 5,186.29 = 1,812.66 : x
  2. Step 2: Convert to fraction form
    3,456.51/5,186.29 = 1,812.66/x
  3. Step 3: Cross multiply
    3,456.51x = 5,186.29 × 1,812.66
  4. Step 4: Simplify right side
    3,456.51x = 9,400,980.43
  5. Step 5: Solve for x
    x = 9,400,980.43/3,456.51
  6. Step 6: Final answer
    x = 2,719.79

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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.