Home / 4,549.20-6,815.70-4,278.12

Finding the Fourth Proportional to 4,549.20, 6,815.70 and 4,278.12

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Solution

The fourth proportional to 4,549.20, 6,815.70 and 4,278.12 is: 6,409.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,549.20 : 6,815.70 = 4,278.12 : x
  2. Step 2: Convert to fraction form
    4,549.20/6,815.70 = 4,278.12/x
  3. Step 3: Cross multiply
    4,549.20x = 6,815.70 × 4,278.12
  4. Step 4: Simplify right side
    4,549.20x = 29,158,382.48
  5. Step 5: Solve for x
    x = 29,158,382.48/4,549.20
  6. Step 6: Final answer
    x = 6,409.56

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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.