Home / 3,653.20-5,471.70-2,828.80

Finding the Fourth Proportional to 3,653.20, 5,471.70 and 2,828.80

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Solution

The fourth proportional to 3,653.20, 5,471.70 and 2,828.80 is: 4,236.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.20 : 5,471.70 = 2,828.80 : x
  2. Step 2: Convert to fraction form
    3,653.20/5,471.70 = 2,828.80/x
  3. Step 3: Cross multiply
    3,653.20x = 5,471.70 × 2,828.80
  4. Step 4: Simplify right side
    3,653.20x = 15,478,344.96
  5. Step 5: Solve for x
    x = 15,478,344.96/3,653.20
  6. Step 6: Final answer
    x = 4,236.93

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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.