Home / 3,859.26-5,787.67-1,393.75

Finding the Fourth Proportional to 3,859.26, 5,787.67 and 1,393.75

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Solution

The fourth proportional to 3,859.26, 5,787.67 and 1,393.75 is: 2,090.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.26 : 5,787.67 = 1,393.75 : x
  2. Step 2: Convert to fraction form
    3,859.26/5,787.67 = 1,393.75/x
  3. Step 3: Cross multiply
    3,859.26x = 5,787.67 × 1,393.75
  4. Step 4: Simplify right side
    3,859.26x = 8,066,565.06
  5. Step 5: Solve for x
    x = 8,066,565.06/3,859.26
  6. Step 6: Final answer
    x = 2,090.18

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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.