Home / 3,811.30-5,716.95-1,345.54

Finding the Fourth Proportional to 3,811.30, 5,716.95 and 1,345.54

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Solution

The fourth proportional to 3,811.30, 5,716.95 and 1,345.54 is: 2,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.30 : 5,716.95 = 1,345.54 : x
  2. Step 2: Convert to fraction form
    3,811.30/5,716.95 = 1,345.54/x
  3. Step 3: Cross multiply
    3,811.30x = 5,716.95 × 1,345.54
  4. Step 4: Simplify right side
    3,811.30x = 7,692,384.90
  5. Step 5: Solve for x
    x = 7,692,384.90/3,811.30
  6. Step 6: Final answer
    x = 2,018.31

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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.