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Finding the Fourth Proportional to 7,648.60, 10,555.50 and 4,291.24

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Solution

The fourth proportional to 7,648.60, 10,555.50 and 4,291.24 is: 5,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,648.60 : 10,555.50 = 4,291.24 : x
  2. Step 2: Convert to fraction form
    7,648.60/10,555.50 = 4,291.24/x
  3. Step 3: Cross multiply
    7,648.60x = 10,555.50 × 4,291.24
  4. Step 4: Simplify right side
    7,648.60x = 45,296,183.82
  5. Step 5: Solve for x
    x = 45,296,183.82/7,648.60
  6. Step 6: Final answer
    x = 5,922.15

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.