Home / 5,820.96-8,731.56-2,125.95

Finding the Fourth Proportional to 5,820.96, 8,731.56 and 2,125.95

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Solution

The fourth proportional to 5,820.96, 8,731.56 and 2,125.95 is: 3,188.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820.96 : 8,731.56 = 2,125.95 : x
  2. Step 2: Convert to fraction form
    5,820.96/8,731.56 = 2,125.95/x
  3. Step 3: Cross multiply
    5,820.96x = 8,731.56 × 2,125.95
  4. Step 4: Simplify right side
    5,820.96x = 18,562,835.21
  5. Step 5: Solve for x
    x = 18,562,835.21/5,820.96
  6. Step 6: Final answer
    x = 3,188.96

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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.