Home / 6,420.27-9,631.37-2,037.87

Finding the Fourth Proportional to 6,420.27, 9,631.37 and 2,037.87

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Solution

The fourth proportional to 6,420.27, 9,631.37 and 2,037.87 is: 3,057.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.27 : 9,631.37 = 2,037.87 : x
  2. Step 2: Convert to fraction form
    6,420.27/9,631.37 = 2,037.87/x
  3. Step 3: Cross multiply
    6,420.27x = 9,631.37 × 2,037.87
  4. Step 4: Simplify right side
    6,420.27x = 19,627,469.79
  5. Step 5: Solve for x
    x = 19,627,469.79/6,420.27
  6. Step 6: Final answer
    x = 3,057.11

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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.