Home / 3,185.13-4,772.81-1,335.23

Finding the Fourth Proportional to 3,185.13, 4,772.81 and 1,335.23

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Solution

The fourth proportional to 3,185.13, 4,772.81 and 1,335.23 is: 2,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.13 : 4,772.81 = 1,335.23 : x
  2. Step 2: Convert to fraction form
    3,185.13/4,772.81 = 1,335.23/x
  3. Step 3: Cross multiply
    3,185.13x = 4,772.81 × 1,335.23
  4. Step 4: Simplify right side
    3,185.13x = 6,372,792.42
  5. Step 5: Solve for x
    x = 6,372,792.42/3,185.13
  6. Step 6: Final answer
    x = 2,000.80

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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.