Home / 3,664.60-5,057.12-1,985.96

Finding the Fourth Proportional to 3,664.60, 5,057.12 and 1,985.96

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Solution

The fourth proportional to 3,664.60, 5,057.12 and 1,985.96 is: 2,740.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.60 : 5,057.12 = 1,985.96 : x
  2. Step 2: Convert to fraction form
    3,664.60/5,057.12 = 1,985.96/x
  3. Step 3: Cross multiply
    3,664.60x = 5,057.12 × 1,985.96
  4. Step 4: Simplify right side
    3,664.60x = 10,043,238.04
  5. Step 5: Solve for x
    x = 10,043,238.04/3,664.60
  6. Step 6: Final answer
    x = 2,740.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.