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Finding the Fourth Proportional to 5,984.64, 8,981.28 and 3,392.64

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Solution

The fourth proportional to 5,984.64, 8,981.28 and 3,392.64 is: 5,091.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,984.64 : 8,981.28 = 3,392.64 : x
  2. Step 2: Convert to fraction form
    5,984.64/8,981.28 = 3,392.64/x
  3. Step 3: Cross multiply
    5,984.64x = 8,981.28 × 3,392.64
  4. Step 4: Simplify right side
    5,984.64x = 30,470,249.78
  5. Step 5: Solve for x
    x = 30,470,249.78/5,984.64
  6. Step 6: Final answer
    x = 5,091.41

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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.