Home / 5,857.03-8,780.20-2,156.68

Finding the Fourth Proportional to 5,857.03, 8,780.20 and 2,156.68

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Solution

The fourth proportional to 5,857.03, 8,780.20 and 2,156.68 is: 3,233.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,857.03 : 8,780.20 = 2,156.68 : x
  2. Step 2: Convert to fraction form
    5,857.03/8,780.20 = 2,156.68/x
  3. Step 3: Cross multiply
    5,857.03x = 8,780.20 × 2,156.68
  4. Step 4: Simplify right side
    5,857.03x = 18,936,081.74
  5. Step 5: Solve for x
    x = 18,936,081.74/5,857.03
  6. Step 6: Final answer
    x = 3,233.05

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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.