Home / 3,209.50-4,816.17-1,385.50

Finding the Fourth Proportional to 3,209.50, 4,816.17 and 1,385.50

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Solution

The fourth proportional to 3,209.50, 4,816.17 and 1,385.50 is: 2,079.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.50 : 4,816.17 = 1,385.50 : x
  2. Step 2: Convert to fraction form
    3,209.50/4,816.17 = 1,385.50/x
  3. Step 3: Cross multiply
    3,209.50x = 4,816.17 × 1,385.50
  4. Step 4: Simplify right side
    3,209.50x = 6,672,803.54
  5. Step 5: Solve for x
    x = 6,672,803.54/3,209.50
  6. Step 6: Final answer
    x = 2,079.08

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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.