Home / 3,155.30-4,353.36-1,828.96

Finding the Fourth Proportional to 3,155.30, 4,353.36 and 1,828.96

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Solution

The fourth proportional to 3,155.30, 4,353.36 and 1,828.96 is: 2,523.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.30 : 4,353.36 = 1,828.96 : x
  2. Step 2: Convert to fraction form
    3,155.30/4,353.36 = 1,828.96/x
  3. Step 3: Cross multiply
    3,155.30x = 4,353.36 × 1,828.96
  4. Step 4: Simplify right side
    3,155.30x = 7,962,121.31
  5. Step 5: Solve for x
    x = 7,962,121.31/3,155.30
  6. Step 6: Final answer
    x = 2,523.41

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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.