Home / 2,431.22-3,351.58-1,731.38

Finding the Fourth Proportional to 2,431.22, 3,351.58 and 1,731.38

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Solution

The fourth proportional to 2,431.22, 3,351.58 and 1,731.38 is: 2,386.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.22 : 3,351.58 = 1,731.38 : x
  2. Step 2: Convert to fraction form
    2,431.22/3,351.58 = 1,731.38/x
  3. Step 3: Cross multiply
    2,431.22x = 3,351.58 × 1,731.38
  4. Step 4: Simplify right side
    2,431.22x = 5,802,837.49
  5. Step 5: Solve for x
    x = 5,802,837.49/2,431.22
  6. Step 6: Final answer
    x = 2,386.81

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1.5x scale

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.