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Finding the Fourth Proportional to 3,706.89, 5,555.16 and 2,609.07

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Solution

The fourth proportional to 3,706.89, 5,555.16 and 2,609.07 is: 3,909.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706.89 : 5,555.16 = 2,609.07 : x
  2. Step 2: Convert to fraction form
    3,706.89/5,555.16 = 2,609.07/x
  3. Step 3: Cross multiply
    3,706.89x = 5,555.16 × 2,609.07
  4. Step 4: Simplify right side
    3,706.89x = 14,493,801.30
  5. Step 5: Solve for x
    x = 14,493,801.30/3,706.89
  6. Step 6: Final answer
    x = 3,909.96

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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.