Home / 6,487.31-9,730.82-2,104.77

Finding the Fourth Proportional to 6,487.31, 9,730.82 and 2,104.77

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Solution

The fourth proportional to 6,487.31, 9,730.82 and 2,104.77 is: 3,157.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.31 : 9,730.82 = 2,104.77 : x
  2. Step 2: Convert to fraction form
    6,487.31/9,730.82 = 2,104.77/x
  3. Step 3: Cross multiply
    6,487.31x = 9,730.82 × 2,104.77
  4. Step 4: Simplify right side
    6,487.31x = 20,481,127.49
  5. Step 5: Solve for x
    x = 20,481,127.49/6,487.31
  6. Step 6: Final answer
    x = 3,157.11

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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.