Home / 3,840.90-5,757.61-2,084.32

Finding the Fourth Proportional to 3,840.90, 5,757.61 and 2,084.32

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Solution

The fourth proportional to 3,840.90, 5,757.61 and 2,084.32 is: 3,124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.90 : 5,757.61 = 2,084.32 : x
  2. Step 2: Convert to fraction form
    3,840.90/5,757.61 = 2,084.32/x
  3. Step 3: Cross multiply
    3,840.90x = 5,757.61 × 2,084.32
  4. Step 4: Simplify right side
    3,840.90x = 12,000,662.47
  5. Step 5: Solve for x
    x = 12,000,662.47/3,840.90
  6. Step 6: Final answer
    x = 3,124.44

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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.