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Finding the Fourth Proportional to 4,505.60, 6,754.80 and 1,906.40

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Solution

The fourth proportional to 4,505.60, 6,754.80 and 1,906.40 is: 2,858.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,505.60 : 6,754.80 = 1,906.40 : x
  2. Step 2: Convert to fraction form
    4,505.60/6,754.80 = 1,906.40/x
  3. Step 3: Cross multiply
    4,505.60x = 6,754.80 × 1,906.40
  4. Step 4: Simplify right side
    4,505.60x = 12,877,350.72
  5. Step 5: Solve for x
    x = 12,877,350.72/4,505.60
  6. Step 6: Final answer
    x = 2,858.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.