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Finding the Fourth Proportional to 2,538.72, 3,808.62 and 895.14

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Solution

The fourth proportional to 2,538.72, 3,808.62 and 895.14 is: 1,342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,538.72 : 3,808.62 = 895.14 : x
  2. Step 2: Convert to fraction form
    2,538.72/3,808.62 = 895.14/x
  3. Step 3: Cross multiply
    2,538.72x = 3,808.62 × 895.14
  4. Step 4: Simplify right side
    2,538.72x = 3,409,248.11
  5. Step 5: Solve for x
    x = 3,409,248.11/2,538.72
  6. Step 6: Final answer
    x = 1,342.90

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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.