Home / 4,278.82-6,428.60-4,042.80

Finding the Fourth Proportional to 4,278.82, 6,428.60 and 4,042.80

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Solution

The fourth proportional to 4,278.82, 6,428.60 and 4,042.80 is: 6,074.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.82 : 6,428.60 = 4,042.80 : x
  2. Step 2: Convert to fraction form
    4,278.82/6,428.60 = 4,042.80/x
  3. Step 3: Cross multiply
    4,278.82x = 6,428.60 × 4,042.80
  4. Step 4: Simplify right side
    4,278.82x = 25,989,523.87
  5. Step 5: Solve for x
    x = 25,989,523.87/4,278.82
  6. Step 6: Final answer
    x = 6,074.00

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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.