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Finding the Fourth Proportional to 2,609.85, 3,602.24 and 1,771.95

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Solution

The fourth proportional to 2,609.85, 3,602.24 and 1,771.95 is: 2,445.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.85 : 3,602.24 = 1,771.95 : x
  2. Step 2: Convert to fraction form
    2,609.85/3,602.24 = 1,771.95/x
  3. Step 3: Cross multiply
    2,609.85x = 3,602.24 × 1,771.95
  4. Step 4: Simplify right side
    2,609.85x = 6,382,989.17
  5. Step 5: Solve for x
    x = 6,382,989.17/2,609.85
  6. Step 6: Final answer
    x = 2,445.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.