Home / 3,273.80-4,905.30-2,787.80

Finding the Fourth Proportional to 3,273.80, 4,905.30 and 2,787.80

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Solution

The fourth proportional to 3,273.80, 4,905.30 and 2,787.80 is: 4,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,273.80 : 4,905.30 = 2,787.80 : x
  2. Step 2: Convert to fraction form
    3,273.80/4,905.30 = 2,787.80/x
  3. Step 3: Cross multiply
    3,273.80x = 4,905.30 × 2,787.80
  4. Step 4: Simplify right side
    3,273.80x = 13,674,995.34
  5. Step 5: Solve for x
    x = 13,674,995.34/3,273.80
  6. Step 6: Final answer
    x = 4,177.10

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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.