Home / 6,814.64-10,221.96-2,918.72

Finding the Fourth Proportional to 6,814.64, 10,221.96 and 2,918.72

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Solution

The fourth proportional to 6,814.64, 10,221.96 and 2,918.72 is: 4,378.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,814.64 : 10,221.96 = 2,918.72 : x
  2. Step 2: Convert to fraction form
    6,814.64/10,221.96 = 2,918.72/x
  3. Step 3: Cross multiply
    6,814.64x = 10,221.96 × 2,918.72
  4. Step 4: Simplify right side
    6,814.64x = 29,835,039.09
  5. Step 5: Solve for x
    x = 29,835,039.09/6,814.64
  6. Step 6: Final answer
    x = 4,378.08

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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.