Home / 5,730.15-8,579.79-3,638.82

Finding the Fourth Proportional to 5,730.15, 8,579.79 and 3,638.82

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Solution

The fourth proportional to 5,730.15, 8,579.79 and 3,638.82 is: 5,448.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,730.15 : 8,579.79 = 3,638.82 : x
  2. Step 2: Convert to fraction form
    5,730.15/8,579.79 = 3,638.82/x
  3. Step 3: Cross multiply
    5,730.15x = 8,579.79 × 3,638.82
  4. Step 4: Simplify right side
    5,730.15x = 31,220,311.45
  5. Step 5: Solve for x
    x = 31,220,311.45/5,730.15
  6. Step 6: Final answer
    x = 5,448.43

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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.