Home / 2,431-3,354.93-1,383.06

Finding the Fourth Proportional to 2,431, 3,354.93 and 1,383.06

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Solution

The fourth proportional to 2,431, 3,354.93 and 1,383.06 is: 1,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431 : 3,354.93 = 1,383.06 : x
  2. Step 2: Convert to fraction form
    2,431/3,354.93 = 1,383.06/x
  3. Step 3: Cross multiply
    2,431x = 3,354.93 × 1,383.06
  4. Step 4: Simplify right side
    2,431x = 4,640,069.49
  5. Step 5: Solve for x
    x = 4,640,069.49/2,431
  6. Step 6: Final answer
    x = 1,908.71

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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.