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Finding the Fourth Proportional to 3,278.88, 4,914.12 and 1,798.08

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Solution

The fourth proportional to 3,278.88, 4,914.12 and 1,798.08 is: 2,694.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.88 : 4,914.12 = 1,798.08 : x
  2. Step 2: Convert to fraction form
    3,278.88/4,914.12 = 1,798.08/x
  3. Step 3: Cross multiply
    3,278.88x = 4,914.12 × 1,798.08
  4. Step 4: Simplify right side
    3,278.88x = 8,835,980.89
  5. Step 5: Solve for x
    x = 8,835,980.89/3,278.88
  6. Step 6: Final answer
    x = 2,694.82

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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.