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Finding the Fourth Proportional to 3,681.72, 5,520.96 and 1,832.76

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Solution

The fourth proportional to 3,681.72, 5,520.96 and 1,832.76 is: 2,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.72 : 5,520.96 = 1,832.76 : x
  2. Step 2: Convert to fraction form
    3,681.72/5,520.96 = 1,832.76/x
  3. Step 3: Cross multiply
    3,681.72x = 5,520.96 × 1,832.76
  4. Step 4: Simplify right side
    3,681.72x = 10,118,594.65
  5. Step 5: Solve for x
    x = 10,118,594.65/3,681.72
  6. Step 6: Final answer
    x = 2,748.33

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1.5x scale

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.