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Finding the Fourth Proportional to 5,394.40, 8,091.60 and 1,696.88

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Solution

The fourth proportional to 5,394.40, 8,091.60 and 1,696.88 is: 2,545.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,394.40 : 8,091.60 = 1,696.88 : x
  2. Step 2: Convert to fraction form
    5,394.40/8,091.60 = 1,696.88/x
  3. Step 3: Cross multiply
    5,394.40x = 8,091.60 × 1,696.88
  4. Step 4: Simplify right side
    5,394.40x = 13,730,474.21
  5. Step 5: Solve for x
    x = 13,730,474.21/5,394.40
  6. Step 6: Final answer
    x = 2,545.32

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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.