Home / 5,820.20-8,730.39-3,858.43

Finding the Fourth Proportional to 5,820.20, 8,730.39 and 3,858.43

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Solution

The fourth proportional to 5,820.20, 8,730.39 and 3,858.43 is: 5,787.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820.20 : 8,730.39 = 3,858.43 : x
  2. Step 2: Convert to fraction form
    5,820.20/8,730.39 = 3,858.43/x
  3. Step 3: Cross multiply
    5,820.20x = 8,730.39 × 3,858.43
  4. Step 4: Simplify right side
    5,820.20x = 33,685,598.69
  5. Step 5: Solve for x
    x = 33,685,598.69/5,820.20
  6. Step 6: Final answer
    x = 5,787.70

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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.