Home / 3,782.64-5,220.06-2,289.96

Finding the Fourth Proportional to 3,782.64, 5,220.06 and 2,289.96

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Solution

The fourth proportional to 3,782.64, 5,220.06 and 2,289.96 is: 3,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.64 : 5,220.06 = 2,289.96 : x
  2. Step 2: Convert to fraction form
    3,782.64/5,220.06 = 2,289.96/x
  3. Step 3: Cross multiply
    3,782.64x = 5,220.06 × 2,289.96
  4. Step 4: Simplify right side
    3,782.64x = 11,953,728.60
  5. Step 5: Solve for x
    x = 11,953,728.60/3,782.64
  6. Step 6: Final answer
    x = 3,160.15

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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.