Home / 3,276.72-4,914.90-1,977.84

Finding the Fourth Proportional to 3,276.72, 4,914.90 and 1,977.84

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Solution

The fourth proportional to 3,276.72, 4,914.90 and 1,977.84 is: 2,966.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,276.72 : 4,914.90 = 1,977.84 : x
  2. Step 2: Convert to fraction form
    3,276.72/4,914.90 = 1,977.84/x
  3. Step 3: Cross multiply
    3,276.72x = 4,914.90 × 1,977.84
  4. Step 4: Simplify right side
    3,276.72x = 9,720,885.82
  5. Step 5: Solve for x
    x = 9,720,885.82/3,276.72
  6. Step 6: Final answer
    x = 2,966.65

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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.