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Finding the Fourth Proportional to 3,347.63, 4,619.60 and 1,855.57

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Solution

The fourth proportional to 3,347.63, 4,619.60 and 1,855.57 is: 2,560.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.63 : 4,619.60 = 1,855.57 : x
  2. Step 2: Convert to fraction form
    3,347.63/4,619.60 = 1,855.57/x
  3. Step 3: Cross multiply
    3,347.63x = 4,619.60 × 1,855.57
  4. Step 4: Simplify right side
    3,347.63x = 8,571,958.80
  5. Step 5: Solve for x
    x = 8,571,958.80/3,347.63
  6. Step 6: Final answer
    x = 2,560.61

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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.