Home / 3,709.28-5,564.20-1,112

Finding the Fourth Proportional to 3,709.28, 5,564.20 and 1,112

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Solution

The fourth proportional to 3,709.28, 5,564.20 and 1,112 is: 1,668.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.28 : 5,564.20 = 1,112 : x
  2. Step 2: Convert to fraction form
    3,709.28/5,564.20 = 1,112/x
  3. Step 3: Cross multiply
    3,709.28x = 5,564.20 × 1,112
  4. Step 4: Simplify right side
    3,709.28x = 6,187,390.40
  5. Step 5: Solve for x
    x = 6,187,390.40/3,709.28
  6. Step 6: Final answer
    x = 1,668.08

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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.