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Finding the Fourth Proportional to 2,679.55, 3,699.53 and 1,633.39

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Solution

The fourth proportional to 2,679.55, 3,699.53 and 1,633.39 is: 2,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.55 : 3,699.53 = 1,633.39 : x
  2. Step 2: Convert to fraction form
    2,679.55/3,699.53 = 1,633.39/x
  3. Step 3: Cross multiply
    2,679.55x = 3,699.53 × 1,633.39
  4. Step 4: Simplify right side
    2,679.55x = 6,042,775.31
  5. Step 5: Solve for x
    x = 6,042,775.31/2,679.55
  6. Step 6: Final answer
    x = 2,255.15

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1.5x scale

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.