Home / 2,431.18-3,354.87-1,383.22

Finding the Fourth Proportional to 2,431.18, 3,354.87 and 1,383.22

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Solution

The fourth proportional to 2,431.18, 3,354.87 and 1,383.22 is: 1,908.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.18 : 3,354.87 = 1,383.22 : x
  2. Step 2: Convert to fraction form
    2,431.18/3,354.87 = 1,383.22/x
  3. Step 3: Cross multiply
    2,431.18x = 3,354.87 × 1,383.22
  4. Step 4: Simplify right side
    2,431.18x = 4,640,523.28
  5. Step 5: Solve for x
    x = 4,640,523.28/2,431.18
  6. Step 6: Final answer
    x = 1,908.75

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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.