Home / 4,914.17-6,781.40-2,789.87

Finding the Fourth Proportional to 4,914.17, 6,781.40 and 2,789.87

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Solution

The fourth proportional to 4,914.17, 6,781.40 and 2,789.87 is: 3,849.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.17 : 6,781.40 = 2,789.87 : x
  2. Step 2: Convert to fraction form
    4,914.17/6,781.40 = 2,789.87/x
  3. Step 3: Cross multiply
    4,914.17x = 6,781.40 × 2,789.87
  4. Step 4: Simplify right side
    4,914.17x = 18,919,210.47
  5. Step 5: Solve for x
    x = 18,919,210.47/4,914.17
  6. Step 6: Final answer
    x = 3,849.93

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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.