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Finding the Fourth Proportional to 3,975.42, 5,963.18 and 1,377.76

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Solution

The fourth proportional to 3,975.42, 5,963.18 and 1,377.76 is: 2,066.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.42 : 5,963.18 = 1,377.76 : x
  2. Step 2: Convert to fraction form
    3,975.42/5,963.18 = 1,377.76/x
  3. Step 3: Cross multiply
    3,975.42x = 5,963.18 × 1,377.76
  4. Step 4: Simplify right side
    3,975.42x = 8,215,830.88
  5. Step 5: Solve for x
    x = 8,215,830.88/3,975.42
  6. Step 6: Final answer
    x = 2,066.66

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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.