Home / 3,864.64-5,792.16-1,808.32

Finding the Fourth Proportional to 3,864.64, 5,792.16 and 1,808.32

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Solution

The fourth proportional to 3,864.64, 5,792.16 and 1,808.32 is: 2,710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.64 : 5,792.16 = 1,808.32 : x
  2. Step 2: Convert to fraction form
    3,864.64/5,792.16 = 1,808.32/x
  3. Step 3: Cross multiply
    3,864.64x = 5,792.16 × 1,808.32
  4. Step 4: Simplify right side
    3,864.64x = 10,474,078.77
  5. Step 5: Solve for x
    x = 10,474,078.77/3,864.64
  6. Step 6: Final answer
    x = 2,710.23

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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.