Home / 3,179.49-4,769.87-1,099.57

Finding the Fourth Proportional to 3,179.49, 4,769.87 and 1,099.57

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Solution

The fourth proportional to 3,179.49, 4,769.87 and 1,099.57 is: 1,649.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.49 : 4,769.87 = 1,099.57 : x
  2. Step 2: Convert to fraction form
    3,179.49/4,769.87 = 1,099.57/x
  3. Step 3: Cross multiply
    3,179.49x = 4,769.87 × 1,099.57
  4. Step 4: Simplify right side
    3,179.49x = 5,244,800.46
  5. Step 5: Solve for x
    x = 5,244,800.46/3,179.49
  6. Step 6: Final answer
    x = 1,649.58

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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.