Home / 5,812.68-8,721.05-1,917.39

Finding the Fourth Proportional to 5,812.68, 8,721.05 and 1,917.39

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Solution

The fourth proportional to 5,812.68, 8,721.05 and 1,917.39 is: 2,876.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.68 : 8,721.05 = 1,917.39 : x
  2. Step 2: Convert to fraction form
    5,812.68/8,721.05 = 1,917.39/x
  3. Step 3: Cross multiply
    5,812.68x = 8,721.05 × 1,917.39
  4. Step 4: Simplify right side
    5,812.68x = 16,721,644.47
  5. Step 5: Solve for x
    x = 16,721,644.47/5,812.68
  6. Step 6: Final answer
    x = 2,876.75

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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.