Home / 7,179.57-10,769.90-1,914.71

Finding the Fourth Proportional to 7,179.57, 10,769.90 and 1,914.71

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Solution

The fourth proportional to 7,179.57, 10,769.90 and 1,914.71 is: 2,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.57 : 10,769.90 = 1,914.71 : x
  2. Step 2: Convert to fraction form
    7,179.57/10,769.90 = 1,914.71/x
  3. Step 3: Cross multiply
    7,179.57x = 10,769.90 × 1,914.71
  4. Step 4: Simplify right side
    7,179.57x = 20,621,171.81
  5. Step 5: Solve for x
    x = 20,621,171.81/7,179.57
  6. Step 6: Final answer
    x = 2,872.20

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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.