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Finding the Fourth Proportional to 4,580.68, 6,861.43 and 2,928.82

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Solution

The fourth proportional to 4,580.68, 6,861.43 and 2,928.82 is: 4,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,580.68 : 6,861.43 = 2,928.82 : x
  2. Step 2: Convert to fraction form
    4,580.68/6,861.43 = 2,928.82/x
  3. Step 3: Cross multiply
    4,580.68x = 6,861.43 × 2,928.82
  4. Step 4: Simplify right side
    4,580.68x = 20,095,893.41
  5. Step 5: Solve for x
    x = 20,095,893.41/4,580.68
  6. Step 6: Final answer
    x = 4,387.10

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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.