Home / 3,627.60-5,007.80-2,731.68

Finding the Fourth Proportional to 3,627.60, 5,007.80 and 2,731.68

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Solution

The fourth proportional to 3,627.60, 5,007.80 and 2,731.68 is: 3,771.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.60 : 5,007.80 = 2,731.68 : x
  2. Step 2: Convert to fraction form
    3,627.60/5,007.80 = 2,731.68/x
  3. Step 3: Cross multiply
    3,627.60x = 5,007.80 × 2,731.68
  4. Step 4: Simplify right side
    3,627.60x = 13,679,707.10
  5. Step 5: Solve for x
    x = 13,679,707.10/3,627.60
  6. Step 6: Final answer
    x = 3,771.01

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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.