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Finding the Fourth Proportional to 2,609.88, 3,601.18 and 1,725.22

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Solution

The fourth proportional to 2,609.88, 3,601.18 and 1,725.22 is: 2,380.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.88 : 3,601.18 = 1,725.22 : x
  2. Step 2: Convert to fraction form
    2,609.88/3,601.18 = 1,725.22/x
  3. Step 3: Cross multiply
    2,609.88x = 3,601.18 × 1,725.22
  4. Step 4: Simplify right side
    2,609.88x = 6,212,827.76
  5. Step 5: Solve for x
    x = 6,212,827.76/2,609.88
  6. Step 6: Final answer
    x = 2,380.50

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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.