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Finding the Fourth Proportional to 5,088.54, 7,631.04 and 2,419.80

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Solution

The fourth proportional to 5,088.54, 7,631.04 and 2,419.80 is: 3,628.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,088.54 : 7,631.04 = 2,419.80 : x
  2. Step 2: Convert to fraction form
    5,088.54/7,631.04 = 2,419.80/x
  3. Step 3: Cross multiply
    5,088.54x = 7,631.04 × 2,419.80
  4. Step 4: Simplify right side
    5,088.54x = 18,465,590.59
  5. Step 5: Solve for x
    x = 18,465,590.59/5,088.54
  6. Step 6: Final answer
    x = 3,628.86

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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.