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Finding the Fourth Proportional to 6,486.80, 9,734.13 and 2,590.88

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Solution

The fourth proportional to 6,486.80, 9,734.13 and 2,590.88 is: 3,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,486.80 : 9,734.13 = 2,590.88 : x
  2. Step 2: Convert to fraction form
    6,486.80/9,734.13 = 2,590.88/x
  3. Step 3: Cross multiply
    6,486.80x = 9,734.13 × 2,590.88
  4. Step 4: Simplify right side
    6,486.80x = 25,219,914.06
  5. Step 5: Solve for x
    x = 25,219,914.06/6,486.80
  6. Step 6: Final answer
    x = 3,887.89

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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.