Home / 3,709.60-5,564.45-1,112.54

Finding the Fourth Proportional to 3,709.60, 5,564.45 and 1,112.54

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Solution

The fourth proportional to 3,709.60, 5,564.45 and 1,112.54 is: 1,668.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.60 : 5,564.45 = 1,112.54 : x
  2. Step 2: Convert to fraction form
    3,709.60/5,564.45 = 1,112.54/x
  3. Step 3: Cross multiply
    3,709.60x = 5,564.45 × 1,112.54
  4. Step 4: Simplify right side
    3,709.60x = 6,190,673.20
  5. Step 5: Solve for x
    x = 6,190,673.20/3,709.60
  6. Step 6: Final answer
    x = 1,668.82

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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.