Home / 3,744.64-5,617.80-1,147.60

Finding the Fourth Proportional to 3,744.64, 5,617.80 and 1,147.60

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Solution

The fourth proportional to 3,744.64, 5,617.80 and 1,147.60 is: 1,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,744.64 : 5,617.80 = 1,147.60 : x
  2. Step 2: Convert to fraction form
    3,744.64/5,617.80 = 1,147.60/x
  3. Step 3: Cross multiply
    3,744.64x = 5,617.80 × 1,147.60
  4. Step 4: Simplify right side
    3,744.64x = 6,446,987.28
  5. Step 5: Solve for x
    x = 6,446,987.28/3,744.64
  6. Step 6: Final answer
    x = 1,721.66

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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.