Home / 3,161.72-4,743.84-1,776

Finding the Fourth Proportional to 3,161.72, 4,743.84 and 1,776

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Solution

The fourth proportional to 3,161.72, 4,743.84 and 1,776 is: 2,664.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.72 : 4,743.84 = 1,776 : x
  2. Step 2: Convert to fraction form
    3,161.72/4,743.84 = 1,776/x
  3. Step 3: Cross multiply
    3,161.72x = 4,743.84 × 1,776
  4. Step 4: Simplify right side
    3,161.72x = 8,425,059.84
  5. Step 5: Solve for x
    x = 8,425,059.84/3,161.72
  6. Step 6: Final answer
    x = 2,664.71

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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.