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Finding the Fourth Proportional to 5,272.88, 7,908.72 and 1,575.08

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Solution

The fourth proportional to 5,272.88, 7,908.72 and 1,575.08 is: 2,362.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.88 : 7,908.72 = 1,575.08 : x
  2. Step 2: Convert to fraction form
    5,272.88/7,908.72 = 1,575.08/x
  3. Step 3: Cross multiply
    5,272.88x = 7,908.72 × 1,575.08
  4. Step 4: Simplify right side
    5,272.88x = 12,456,866.70
  5. Step 5: Solve for x
    x = 12,456,866.70/5,272.88
  6. Step 6: Final answer
    x = 2,362.44

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.