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Finding the Fourth Proportional to 5,913.72, 8,868.30 and 1,963.74

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Solution

The fourth proportional to 5,913.72, 8,868.30 and 1,963.74 is: 2,944.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,913.72 : 8,868.30 = 1,963.74 : x
  2. Step 2: Convert to fraction form
    5,913.72/8,868.30 = 1,963.74/x
  3. Step 3: Cross multiply
    5,913.72x = 8,868.30 × 1,963.74
  4. Step 4: Simplify right side
    5,913.72x = 17,415,035.44
  5. Step 5: Solve for x
    x = 17,415,035.44/5,913.72
  6. Step 6: Final answer
    x = 2,944.85

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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.