Home / 3,857.76-5,792.40-2,216.16

Finding the Fourth Proportional to 3,857.76, 5,792.40 and 2,216.16

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Solution

The fourth proportional to 3,857.76, 5,792.40 and 2,216.16 is: 3,327.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.76 : 5,792.40 = 2,216.16 : x
  2. Step 2: Convert to fraction form
    3,857.76/5,792.40 = 2,216.16/x
  3. Step 3: Cross multiply
    3,857.76x = 5,792.40 × 2,216.16
  4. Step 4: Simplify right side
    3,857.76x = 12,836,885.18
  5. Step 5: Solve for x
    x = 12,836,885.18/3,857.76
  6. Step 6: Final answer
    x = 3,327.55

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1.5x scale

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.