Home / 3,311.28-4,970.36-3,236.90

Finding the Fourth Proportional to 3,311.28, 4,970.36 and 3,236.90

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Solution

The fourth proportional to 3,311.28, 4,970.36 and 3,236.90 is: 4,858.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.28 : 4,970.36 = 3,236.90 : x
  2. Step 2: Convert to fraction form
    3,311.28/4,970.36 = 3,236.90/x
  3. Step 3: Cross multiply
    3,311.28x = 4,970.36 × 3,236.90
  4. Step 4: Simplify right side
    3,311.28x = 16,088,541.52
  5. Step 5: Solve for x
    x = 16,088,541.52/3,311.28
  6. Step 6: Final answer
    x = 4,858.71

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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.