Home / 3,811.43-5,716.12-1,345.93

Finding the Fourth Proportional to 3,811.43, 5,716.12 and 1,345.93

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Solution

The fourth proportional to 3,811.43, 5,716.12 and 1,345.93 is: 2,018.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.43 : 5,716.12 = 1,345.93 : x
  2. Step 2: Convert to fraction form
    3,811.43/5,716.12 = 1,345.93/x
  3. Step 3: Cross multiply
    3,811.43x = 5,716.12 × 1,345.93
  4. Step 4: Simplify right side
    3,811.43x = 7,693,484.78
  5. Step 5: Solve for x
    x = 7,693,484.78/3,811.43
  6. Step 6: Final answer
    x = 2,018.53

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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.