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Finding the Fourth Proportional to 3,848.64, 5,774.16 and 1,252.32

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Solution

The fourth proportional to 3,848.64, 5,774.16 and 1,252.32 is: 1,878.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.64 : 5,774.16 = 1,252.32 : x
  2. Step 2: Convert to fraction form
    3,848.64/5,774.16 = 1,252.32/x
  3. Step 3: Cross multiply
    3,848.64x = 5,774.16 × 1,252.32
  4. Step 4: Simplify right side
    3,848.64x = 7,231,096.05
  5. Step 5: Solve for x
    x = 7,231,096.05/3,848.64
  6. Step 6: Final answer
    x = 1,878.87

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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.