Home / 3,428.08-5,137.64-1,377.52

Finding the Fourth Proportional to 3,428.08, 5,137.64 and 1,377.52

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Solution

The fourth proportional to 3,428.08, 5,137.64 and 1,377.52 is: 2,064.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.08 : 5,137.64 = 1,377.52 : x
  2. Step 2: Convert to fraction form
    3,428.08/5,137.64 = 1,377.52/x
  3. Step 3: Cross multiply
    3,428.08x = 5,137.64 × 1,377.52
  4. Step 4: Simplify right side
    3,428.08x = 7,077,201.85
  5. Step 5: Solve for x
    x = 7,077,201.85/3,428.08
  6. Step 6: Final answer
    x = 2,064.48

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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.