Home / 3,885-5,827.92-1,252.32

Finding the Fourth Proportional to 3,885, 5,827.92 and 1,252.32

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Solution

The fourth proportional to 3,885, 5,827.92 and 1,252.32 is: 1,878.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885 : 5,827.92 = 1,252.32 : x
  2. Step 2: Convert to fraction form
    3,885/5,827.92 = 1,252.32/x
  3. Step 3: Cross multiply
    3,885x = 5,827.92 × 1,252.32
  4. Step 4: Simplify right side
    3,885x = 7,298,420.77
  5. Step 5: Solve for x
    x = 7,298,420.77/3,885
  6. Step 6: Final answer
    x = 1,878.62

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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.