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Finding the Fourth Proportional to 4,951.81, 7,419.46 and 3,487.89

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Solution

The fourth proportional to 4,951.81, 7,419.46 and 3,487.89 is: 5,226.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,951.81 : 7,419.46 = 3,487.89 : x
  2. Step 2: Convert to fraction form
    4,951.81/7,419.46 = 3,487.89/x
  3. Step 3: Cross multiply
    4,951.81x = 7,419.46 × 3,487.89
  4. Step 4: Simplify right side
    4,951.81x = 25,878,260.34
  5. Step 5: Solve for x
    x = 25,878,260.34/4,951.81
  6. Step 6: Final answer
    x = 5,226.02

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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.