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Finding the Fourth Proportional to 5,783.94, 7,981.97 and 3,426.12

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Solution

The fourth proportional to 5,783.94, 7,981.97 and 3,426.12 is: 4,728.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,783.94 : 7,981.97 = 3,426.12 : x
  2. Step 2: Convert to fraction form
    5,783.94/7,981.97 = 3,426.12/x
  3. Step 3: Cross multiply
    5,783.94x = 7,981.97 × 3,426.12
  4. Step 4: Simplify right side
    5,783.94x = 27,347,169.93
  5. Step 5: Solve for x
    x = 27,347,169.93/5,783.94
  6. Step 6: Final answer
    x = 4,728.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.