Home / 3,124.41-4,313.26-1,945.86

Finding the Fourth Proportional to 3,124.41, 4,313.26 and 1,945.86

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Solution

The fourth proportional to 3,124.41, 4,313.26 and 1,945.86 is: 2,686.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.41 : 4,313.26 = 1,945.86 : x
  2. Step 2: Convert to fraction form
    3,124.41/4,313.26 = 1,945.86/x
  3. Step 3: Cross multiply
    3,124.41x = 4,313.26 × 1,945.86
  4. Step 4: Simplify right side
    3,124.41x = 8,393,000.10
  5. Step 5: Solve for x
    x = 8,393,000.10/3,124.41
  6. Step 6: Final answer
    x = 2,686.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.