Home / 3,747.36-5,621.73-1,281.60

Finding the Fourth Proportional to 3,747.36, 5,621.73 and 1,281.60

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Solution

The fourth proportional to 3,747.36, 5,621.73 and 1,281.60 is: 1,922.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.36 : 5,621.73 = 1,281.60 : x
  2. Step 2: Convert to fraction form
    3,747.36/5,621.73 = 1,281.60/x
  3. Step 3: Cross multiply
    3,747.36x = 5,621.73 × 1,281.60
  4. Step 4: Simplify right side
    3,747.36x = 7,204,809.17
  5. Step 5: Solve for x
    x = 7,204,809.17/3,747.36
  6. Step 6: Final answer
    x = 1,922.64

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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.