Home / 3,423.13-5,135.31-1,779.54

Finding the Fourth Proportional to 3,423.13, 5,135.31 and 1,779.54

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Solution

The fourth proportional to 3,423.13, 5,135.31 and 1,779.54 is: 2,669.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.13 : 5,135.31 = 1,779.54 : x
  2. Step 2: Convert to fraction form
    3,423.13/5,135.31 = 1,779.54/x
  3. Step 3: Cross multiply
    3,423.13x = 5,135.31 × 1,779.54
  4. Step 4: Simplify right side
    3,423.13x = 9,138,494.18
  5. Step 5: Solve for x
    x = 9,138,494.18/3,423.13
  6. Step 6: Final answer
    x = 2,669.63

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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.