Home / 2,847.18-3,928-1,727.71

Finding the Fourth Proportional to 2,847.18, 3,928 and 1,727.71

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Solution

The fourth proportional to 2,847.18, 3,928 and 1,727.71 is: 2,383.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.18 : 3,928 = 1,727.71 : x
  2. Step 2: Convert to fraction form
    2,847.18/3,928 = 1,727.71/x
  3. Step 3: Cross multiply
    2,847.18x = 3,928 × 1,727.71
  4. Step 4: Simplify right side
    2,847.18x = 6,786,444.88
  5. Step 5: Solve for x
    x = 6,786,444.88/2,847.18
  6. Step 6: Final answer
    x = 2,383.57

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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.