Home / 2,618.66-3,923.34-1,383.35

Finding the Fourth Proportional to 2,618.66, 3,923.34 and 1,383.35

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Solution

The fourth proportional to 2,618.66, 3,923.34 and 1,383.35 is: 2,072.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,618.66 : 3,923.34 = 1,383.35 : x
  2. Step 2: Convert to fraction form
    2,618.66/3,923.34 = 1,383.35/x
  3. Step 3: Cross multiply
    2,618.66x = 3,923.34 × 1,383.35
  4. Step 4: Simplify right side
    2,618.66x = 5,427,332.77
  5. Step 5: Solve for x
    x = 5,427,332.77/2,618.66
  6. Step 6: Final answer
    x = 2,072.57

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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.