Home / 3,430.38-5,141.44-1,578.96

Finding the Fourth Proportional to 3,430.38, 5,141.44 and 1,578.96

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Solution

The fourth proportional to 3,430.38, 5,141.44 and 1,578.96 is: 2,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.38 : 5,141.44 = 1,578.96 : x
  2. Step 2: Convert to fraction form
    3,430.38/5,141.44 = 1,578.96/x
  3. Step 3: Cross multiply
    3,430.38x = 5,141.44 × 1,578.96
  4. Step 4: Simplify right side
    3,430.38x = 8,118,128.10
  5. Step 5: Solve for x
    x = 8,118,128.10/3,430.38
  6. Step 6: Final answer
    x = 2,366.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.