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Finding the Fourth Proportional to 5,909.42, 8,865.18 and 1,960.91

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Solution

The fourth proportional to 5,909.42, 8,865.18 and 1,960.91 is: 2,941.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,909.42 : 8,865.18 = 1,960.91 : x
  2. Step 2: Convert to fraction form
    5,909.42/8,865.18 = 1,960.91/x
  3. Step 3: Cross multiply
    5,909.42x = 8,865.18 × 1,960.91
  4. Step 4: Simplify right side
    5,909.42x = 17,383,828.45
  5. Step 5: Solve for x
    x = 17,383,828.45/5,909.42
  6. Step 6: Final answer
    x = 2,941.72

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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.