Home / 5,820.42-8,730.30-2,121.96

Finding the Fourth Proportional to 5,820.42, 8,730.30 and 2,121.96

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Solution

The fourth proportional to 5,820.42, 8,730.30 and 2,121.96 is: 3,182.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820.42 : 8,730.30 = 2,121.96 : x
  2. Step 2: Convert to fraction form
    5,820.42/8,730.30 = 2,121.96/x
  3. Step 3: Cross multiply
    5,820.42x = 8,730.30 × 2,121.96
  4. Step 4: Simplify right side
    5,820.42x = 18,525,347.39
  5. Step 5: Solve for x
    x = 18,525,347.39/5,820.42
  6. Step 6: Final answer
    x = 3,182.82

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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.