Home / 3,576.60-5,364.96-979.56

Finding the Fourth Proportional to 3,576.60, 5,364.96 and 979.56

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Solution

The fourth proportional to 3,576.60, 5,364.96 and 979.56 is: 1,469.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.60 : 5,364.96 = 979.56 : x
  2. Step 2: Convert to fraction form
    3,576.60/5,364.96 = 979.56/x
  3. Step 3: Cross multiply
    3,576.60x = 5,364.96 × 979.56
  4. Step 4: Simplify right side
    3,576.60x = 5,255,300.22
  5. Step 5: Solve for x
    x = 5,255,300.22/3,576.60
  6. Step 6: Final answer
    x = 1,469.36

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1.5x scale

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.