Home / 3,811.98-5,716.93-1,345.47

Finding the Fourth Proportional to 3,811.98, 5,716.93 and 1,345.47

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Solution

The fourth proportional to 3,811.98, 5,716.93 and 1,345.47 is: 2,017.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.98 : 5,716.93 = 1,345.47 : x
  2. Step 2: Convert to fraction form
    3,811.98/5,716.93 = 1,345.47/x
  3. Step 3: Cross multiply
    3,811.98x = 5,716.93 × 1,345.47
  4. Step 4: Simplify right side
    3,811.98x = 7,691,957.81
  5. Step 5: Solve for x
    x = 7,691,957.81/3,811.98
  6. Step 6: Final answer
    x = 2,017.84

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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.