Home / 3,270.10-4,905.15-3,205.30

Finding the Fourth Proportional to 3,270.10, 4,905.15 and 3,205.30

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Solution

The fourth proportional to 3,270.10, 4,905.15 and 3,205.30 is: 4,807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.10 : 4,905.15 = 3,205.30 : x
  2. Step 2: Convert to fraction form
    3,270.10/4,905.15 = 3,205.30/x
  3. Step 3: Cross multiply
    3,270.10x = 4,905.15 × 3,205.30
  4. Step 4: Simplify right side
    3,270.10x = 15,722,477.30
  5. Step 5: Solve for x
    x = 15,722,477.30/3,270.10
  6. Step 6: Final answer
    x = 4,807.95

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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.