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Finding the Fourth Proportional to 5,391.92, 8,090.04 and 1,694.72

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Solution

The fourth proportional to 5,391.92, 8,090.04 and 1,694.72 is: 2,542.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.92 : 8,090.04 = 1,694.72 : x
  2. Step 2: Convert to fraction form
    5,391.92/8,090.04 = 1,694.72/x
  3. Step 3: Cross multiply
    5,391.92x = 8,090.04 × 1,694.72
  4. Step 4: Simplify right side
    5,391.92x = 13,710,352.59
  5. Step 5: Solve for x
    x = 13,710,352.59/5,391.92
  6. Step 6: Final answer
    x = 2,542.76

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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.