Home / 4,638.36-6,401.32-2,649

Finding the Fourth Proportional to 4,638.36, 6,401.32 and 2,649

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Solution

The fourth proportional to 4,638.36, 6,401.32 and 2,649 is: 3,655.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.36 : 6,401.32 = 2,649 : x
  2. Step 2: Convert to fraction form
    4,638.36/6,401.32 = 2,649/x
  3. Step 3: Cross multiply
    4,638.36x = 6,401.32 × 2,649
  4. Step 4: Simplify right side
    4,638.36x = 16,957,096.68
  5. Step 5: Solve for x
    x = 16,957,096.68/4,638.36
  6. Step 6: Final answer
    x = 3,655.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.