Home / 3,384.50-5,076.78-1,332.50

Finding the Fourth Proportional to 3,384.50, 5,076.78 and 1,332.50

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Solution

The fourth proportional to 3,384.50, 5,076.78 and 1,332.50 is: 1,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,384.50 : 5,076.78 = 1,332.50 : x
  2. Step 2: Convert to fraction form
    3,384.50/5,076.78 = 1,332.50/x
  3. Step 3: Cross multiply
    3,384.50x = 5,076.78 × 1,332.50
  4. Step 4: Simplify right side
    3,384.50x = 6,764,809.35
  5. Step 5: Solve for x
    x = 6,764,809.35/3,384.50
  6. Step 6: Final answer
    x = 1,998.76

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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.