Home / 2,428.96-3,351.90-1,381.36

Finding the Fourth Proportional to 2,428.96, 3,351.90 and 1,381.36

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Solution

The fourth proportional to 2,428.96, 3,351.90 and 1,381.36 is: 1,906.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.96 : 3,351.90 = 1,381.36 : x
  2. Step 2: Convert to fraction form
    2,428.96/3,351.90 = 1,381.36/x
  3. Step 3: Cross multiply
    2,428.96x = 3,351.90 × 1,381.36
  4. Step 4: Simplify right side
    2,428.96x = 4,630,180.58
  5. Step 5: Solve for x
    x = 4,630,180.58/2,428.96
  6. Step 6: Final answer
    x = 1,906.24

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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.