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Finding the Fourth Proportional to 7,648.45, 11,472.69 and 2,718.08

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Solution

The fourth proportional to 7,648.45, 11,472.69 and 2,718.08 is: 4,077.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,648.45 : 11,472.69 = 2,718.08 : x
  2. Step 2: Convert to fraction form
    7,648.45/11,472.69 = 2,718.08/x
  3. Step 3: Cross multiply
    7,648.45x = 11,472.69 × 2,718.08
  4. Step 4: Simplify right side
    7,648.45x = 31,183,689.24
  5. Step 5: Solve for x
    x = 31,183,689.24/7,648.45
  6. Step 6: Final answer
    x = 4,077.13

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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.