Home / 5,820.57-8,731.86-2,122.47

Finding the Fourth Proportional to 5,820.57, 8,731.86 and 2,122.47

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Solution

The fourth proportional to 5,820.57, 8,731.86 and 2,122.47 is: 3,184.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820.57 : 8,731.86 = 2,122.47 : x
  2. Step 2: Convert to fraction form
    5,820.57/8,731.86 = 2,122.47/x
  3. Step 3: Cross multiply
    5,820.57x = 8,731.86 × 2,122.47
  4. Step 4: Simplify right side
    5,820.57x = 18,533,110.89
  5. Step 5: Solve for x
    x = 18,533,110.89/5,820.57
  6. Step 6: Final answer
    x = 3,184.07

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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.