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Finding the Fourth Proportional to 4,173.58, 5,759.70 and 2,812.70

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Solution

The fourth proportional to 4,173.58, 5,759.70 and 2,812.70 is: 3,881.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,173.58 : 5,759.70 = 2,812.70 : x
  2. Step 2: Convert to fraction form
    4,173.58/5,759.70 = 2,812.70/x
  3. Step 3: Cross multiply
    4,173.58x = 5,759.70 × 2,812.70
  4. Step 4: Simplify right side
    4,173.58x = 16,200,308.19
  5. Step 5: Solve for x
    x = 16,200,308.19/4,173.58
  6. Step 6: Final answer
    x = 3,881.63

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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.