Home / 4,278.86-6,408.95-2,630.41

Finding the Fourth Proportional to 4,278.86, 6,408.95 and 2,630.41

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Solution

The fourth proportional to 4,278.86, 6,408.95 and 2,630.41 is: 3,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.86 : 6,408.95 = 2,630.41 : x
  2. Step 2: Convert to fraction form
    4,278.86/6,408.95 = 2,630.41/x
  3. Step 3: Cross multiply
    4,278.86x = 6,408.95 × 2,630.41
  4. Step 4: Simplify right side
    4,278.86x = 16,858,166.17
  5. Step 5: Solve for x
    x = 16,858,166.17/4,278.86
  6. Step 6: Final answer
    x = 3,939.87

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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.