Home / 3,179.70-4,769.55-2,669.40

Finding the Fourth Proportional to 3,179.70, 4,769.55 and 2,669.40

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Solution

The fourth proportional to 3,179.70, 4,769.55 and 2,669.40 is: 4,004.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.70 : 4,769.55 = 2,669.40 : x
  2. Step 2: Convert to fraction form
    3,179.70/4,769.55 = 2,669.40/x
  3. Step 3: Cross multiply
    3,179.70x = 4,769.55 × 2,669.40
  4. Step 4: Simplify right side
    3,179.70x = 12,731,836.77
  5. Step 5: Solve for x
    x = 12,731,836.77/3,179.70
  6. Step 6: Final answer
    x = 4,004.10

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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.