Home / 3,127.86-4,688.46-1,371.33

Finding the Fourth Proportional to 3,127.86, 4,688.46 and 1,371.33

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Solution

The fourth proportional to 3,127.86, 4,688.46 and 1,371.33 is: 2,055.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.86 : 4,688.46 = 1,371.33 : x
  2. Step 2: Convert to fraction form
    3,127.86/4,688.46 = 1,371.33/x
  3. Step 3: Cross multiply
    3,127.86x = 4,688.46 × 1,371.33
  4. Step 4: Simplify right side
    3,127.86x = 6,429,425.85
  5. Step 5: Solve for x
    x = 6,429,425.85/3,127.86
  6. Step 6: Final answer
    x = 2,055.54

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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.