Home / 4,914.64-6,782.40-2,819.17

Finding the Fourth Proportional to 4,914.64, 6,782.40 and 2,819.17

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Solution

The fourth proportional to 4,914.64, 6,782.40 and 2,819.17 is: 3,890.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.64 : 6,782.40 = 2,819.17 : x
  2. Step 2: Convert to fraction form
    4,914.64/6,782.40 = 2,819.17/x
  3. Step 3: Cross multiply
    4,914.64x = 6,782.40 × 2,819.17
  4. Step 4: Simplify right side
    4,914.64x = 19,120,747.09
  5. Step 5: Solve for x
    x = 19,120,747.09/4,914.64
  6. Step 6: Final answer
    x = 3,890.57

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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.