Home / 4,914.48-6,781.92-2,818.56

Finding the Fourth Proportional to 4,914.48, 6,781.92 and 2,818.56

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Solution

The fourth proportional to 4,914.48, 6,781.92 and 2,818.56 is: 3,889.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.48 : 6,781.92 = 2,818.56 : x
  2. Step 2: Convert to fraction form
    4,914.48/6,781.92 = 2,818.56/x
  3. Step 3: Cross multiply
    4,914.48x = 6,781.92 × 2,818.56
  4. Step 4: Simplify right side
    4,914.48x = 19,115,248.44
  5. Step 5: Solve for x
    x = 19,115,248.44/4,914.48
  6. Step 6: Final answer
    x = 3,889.58

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1.5x scale

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.