Home / 3,125.16-4,311.97-1,945.40

Finding the Fourth Proportional to 3,125.16, 4,311.97 and 1,945.40

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Solution

The fourth proportional to 3,125.16, 4,311.97 and 1,945.40 is: 2,684.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.16 : 4,311.97 = 1,945.40 : x
  2. Step 2: Convert to fraction form
    3,125.16/4,311.97 = 1,945.40/x
  3. Step 3: Cross multiply
    3,125.16x = 4,311.97 × 1,945.40
  4. Step 4: Simplify right side
    3,125.16x = 8,388,480.01
  5. Step 5: Solve for x
    x = 8,388,480.01/3,125.16
  6. Step 6: Final answer
    x = 2,684.18

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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.