Home / 4,155.34-6,231.28-2,072.87

Finding the Fourth Proportional to 4,155.34, 6,231.28 and 2,072.87

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Solution

The fourth proportional to 4,155.34, 6,231.28 and 2,072.87 is: 3,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.34 : 6,231.28 = 2,072.87 : x
  2. Step 2: Convert to fraction form
    4,155.34/6,231.28 = 2,072.87/x
  3. Step 3: Cross multiply
    4,155.34x = 6,231.28 × 2,072.87
  4. Step 4: Simplify right side
    4,155.34x = 12,916,616.60
  5. Step 5: Solve for x
    x = 12,916,616.60/4,155.34
  6. Step 6: Final answer
    x = 3,108.44

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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.