Home / 5,769.89-8,656.85-1,821.76

Finding the Fourth Proportional to 5,769.89, 8,656.85 and 1,821.76

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Solution

The fourth proportional to 5,769.89, 8,656.85 and 1,821.76 is: 2,733.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,769.89 : 8,656.85 = 1,821.76 : x
  2. Step 2: Convert to fraction form
    5,769.89/8,656.85 = 1,821.76/x
  3. Step 3: Cross multiply
    5,769.89x = 8,656.85 × 1,821.76
  4. Step 4: Simplify right side
    5,769.89x = 15,770,703.06
  5. Step 5: Solve for x
    x = 15,770,703.06/5,769.89
  6. Step 6: Final answer
    x = 2,733.28

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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.