Home / 3,213.90-4,816.59-1,653.84

Finding the Fourth Proportional to 3,213.90, 4,816.59 and 1,653.84

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Solution

The fourth proportional to 3,213.90, 4,816.59 and 1,653.84 is: 2,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.90 : 4,816.59 = 1,653.84 : x
  2. Step 2: Convert to fraction form
    3,213.90/4,816.59 = 1,653.84/x
  3. Step 3: Cross multiply
    3,213.90x = 4,816.59 × 1,653.84
  4. Step 4: Simplify right side
    3,213.90x = 7,965,869.21
  5. Step 5: Solve for x
    x = 7,965,869.21/3,213.90
  6. Step 6: Final answer
    x = 2,478.57

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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.