Home / 2,351.96-3,245.28-1,357.28

Finding the Fourth Proportional to 2,351.96, 3,245.28 and 1,357.28

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Solution

The fourth proportional to 2,351.96, 3,245.28 and 1,357.28 is: 1,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.96 : 3,245.28 = 1,357.28 : x
  2. Step 2: Convert to fraction form
    2,351.96/3,245.28 = 1,357.28/x
  3. Step 3: Cross multiply
    2,351.96x = 3,245.28 × 1,357.28
  4. Step 4: Simplify right side
    2,351.96x = 4,404,753.64
  5. Step 5: Solve for x
    x = 4,404,753.64/2,351.96
  6. Step 6: Final answer
    x = 1,872.80

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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.