Home / 5,399.62-8,101.68-2,931.46

Finding the Fourth Proportional to 5,399.62, 8,101.68 and 2,931.46

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Solution

The fourth proportional to 5,399.62, 8,101.68 and 2,931.46 is: 4,398.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.62 : 8,101.68 = 2,931.46 : x
  2. Step 2: Convert to fraction form
    5,399.62/8,101.68 = 2,931.46/x
  3. Step 3: Cross multiply
    5,399.62x = 8,101.68 × 2,931.46
  4. Step 4: Simplify right side
    5,399.62x = 23,749,750.85
  5. Step 5: Solve for x
    x = 23,749,750.85/5,399.62
  6. Step 6: Final answer
    x = 4,398.41

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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.