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Finding the Fourth Proportional to 5,335.92, 8,019 and 3,145.68

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Solution

The fourth proportional to 5,335.92, 8,019 and 3,145.68 is: 4,727.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,335.92 : 8,019 = 3,145.68 : x
  2. Step 2: Convert to fraction form
    5,335.92/8,019 = 3,145.68/x
  3. Step 3: Cross multiply
    5,335.92x = 8,019 × 3,145.68
  4. Step 4: Simplify right side
    5,335.92x = 25,225,207.92
  5. Step 5: Solve for x
    x = 25,225,207.92/5,335.92
  6. Step 6: Final answer
    x = 4,727.43

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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.