Home / 3,386.72-5,080.17-1,631.45

Finding the Fourth Proportional to 3,386.72, 5,080.17 and 1,631.45

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Solution

The fourth proportional to 3,386.72, 5,080.17 and 1,631.45 is: 2,447.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.72 : 5,080.17 = 1,631.45 : x
  2. Step 2: Convert to fraction form
    3,386.72/5,080.17 = 1,631.45/x
  3. Step 3: Cross multiply
    3,386.72x = 5,080.17 × 1,631.45
  4. Step 4: Simplify right side
    3,386.72x = 8,288,043.35
  5. Step 5: Solve for x
    x = 8,288,043.35/3,386.72
  6. Step 6: Final answer
    x = 2,447.22

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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.