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Finding the Fourth Proportional to 5,282.88, 7,925.40 and 1,819.68

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Solution

The fourth proportional to 5,282.88, 7,925.40 and 1,819.68 is: 2,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.88 : 7,925.40 = 1,819.68 : x
  2. Step 2: Convert to fraction form
    5,282.88/7,925.40 = 1,819.68/x
  3. Step 3: Cross multiply
    5,282.88x = 7,925.40 × 1,819.68
  4. Step 4: Simplify right side
    5,282.88x = 14,421,691.87
  5. Step 5: Solve for x
    x = 14,421,691.87/5,282.88
  6. Step 6: Final answer
    x = 2,729.89

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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.