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Finding the Fourth Proportional to 4,918.89, 7,373.47 and 2,287.20

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Solution

The fourth proportional to 4,918.89, 7,373.47 and 2,287.20 is: 3,428.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.89 : 7,373.47 = 2,287.20 : x
  2. Step 2: Convert to fraction form
    4,918.89/7,373.47 = 2,287.20/x
  3. Step 3: Cross multiply
    4,918.89x = 7,373.47 × 2,287.20
  4. Step 4: Simplify right side
    4,918.89x = 16,864,594.87
  5. Step 5: Solve for x
    x = 16,864,594.87/4,918.89
  6. Step 6: Final answer
    x = 3,428.54

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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.