Home / 3,179.69-4,769.85-1,178.92

Finding the Fourth Proportional to 3,179.69, 4,769.85 and 1,178.92

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Solution

The fourth proportional to 3,179.69, 4,769.85 and 1,178.92 is: 1,768.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.69 : 4,769.85 = 1,178.92 : x
  2. Step 2: Convert to fraction form
    3,179.69/4,769.85 = 1,178.92/x
  3. Step 3: Cross multiply
    3,179.69x = 4,769.85 × 1,178.92
  4. Step 4: Simplify right side
    3,179.69x = 5,623,259.64
  5. Step 5: Solve for x
    x = 5,623,259.64/3,179.69
  6. Step 6: Final answer
    x = 1,768.50

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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.