Home / 3,386.73-5,080-1,631.87

Finding the Fourth Proportional to 3,386.73, 5,080 and 1,631.87

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Solution

The fourth proportional to 3,386.73, 5,080 and 1,631.87 is: 2,447.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.73 : 5,080 = 1,631.87 : x
  2. Step 2: Convert to fraction form
    3,386.73/5,080 = 1,631.87/x
  3. Step 3: Cross multiply
    3,386.73x = 5,080 × 1,631.87
  4. Step 4: Simplify right side
    3,386.73x = 8,289,899.60
  5. Step 5: Solve for x
    x = 8,289,899.60/3,386.73
  6. Step 6: Final answer
    x = 2,447.76

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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.