Home / 3,178.35-4,769.81-2,354.15

Finding the Fourth Proportional to 3,178.35, 4,769.81 and 2,354.15

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Solution

The fourth proportional to 3,178.35, 4,769.81 and 2,354.15 is: 3,532.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.35 : 4,769.81 = 2,354.15 : x
  2. Step 2: Convert to fraction form
    3,178.35/4,769.81 = 2,354.15/x
  3. Step 3: Cross multiply
    3,178.35x = 4,769.81 × 2,354.15
  4. Step 4: Simplify right side
    3,178.35x = 11,228,812.59
  5. Step 5: Solve for x
    x = 11,228,812.59/3,178.35
  6. Step 6: Final answer
    x = 3,532.91

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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.