Home / 3,213.28-4,434.76-1,816

Finding the Fourth Proportional to 3,213.28, 4,434.76 and 1,816

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Solution

The fourth proportional to 3,213.28, 4,434.76 and 1,816 is: 2,506.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.28 : 4,434.76 = 1,816 : x
  2. Step 2: Convert to fraction form
    3,213.28/4,434.76 = 1,816/x
  3. Step 3: Cross multiply
    3,213.28x = 4,434.76 × 1,816
  4. Step 4: Simplify right side
    3,213.28x = 8,053,524.16
  5. Step 5: Solve for x
    x = 8,053,524.16/3,213.28
  6. Step 6: Final answer
    x = 2,506.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.