Home / 3,421.38-5,137.50-2,865.48

Finding the Fourth Proportional to 3,421.38, 5,137.50 and 2,865.48

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Solution

The fourth proportional to 3,421.38, 5,137.50 and 2,865.48 is: 4,302.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.38 : 5,137.50 = 2,865.48 : x
  2. Step 2: Convert to fraction form
    3,421.38/5,137.50 = 2,865.48/x
  3. Step 3: Cross multiply
    3,421.38x = 5,137.50 × 2,865.48
  4. Step 4: Simplify right side
    3,421.38x = 14,721,403.50
  5. Step 5: Solve for x
    x = 14,721,403.50/3,421.38
  6. Step 6: Final answer
    x = 4,302.77

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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.