Home / 4,278.77-6,418.05-3,240.75

Finding the Fourth Proportional to 4,278.77, 6,418.05 and 3,240.75

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Solution

The fourth proportional to 4,278.77, 6,418.05 and 3,240.75 is: 4,861.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.77 : 6,418.05 = 3,240.75 : x
  2. Step 2: Convert to fraction form
    4,278.77/6,418.05 = 3,240.75/x
  3. Step 3: Cross multiply
    4,278.77x = 6,418.05 × 3,240.75
  4. Step 4: Simplify right side
    4,278.77x = 20,799,266.88
  5. Step 5: Solve for x
    x = 20,799,266.88/4,278.77
  6. Step 6: Final answer
    x = 4,861.03

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1.5x scale

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.