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Finding the Fourth Proportional to 5,691.75, 8,535.96 and 1,993.29

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Solution

The fourth proportional to 5,691.75, 8,535.96 and 1,993.29 is: 2,989.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.75 : 8,535.96 = 1,993.29 : x
  2. Step 2: Convert to fraction form
    5,691.75/8,535.96 = 1,993.29/x
  3. Step 3: Cross multiply
    5,691.75x = 8,535.96 × 1,993.29
  4. Step 4: Simplify right side
    5,691.75x = 17,014,643.71
  5. Step 5: Solve for x
    x = 17,014,643.71/5,691.75
  6. Step 6: Final answer
    x = 2,989.35

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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.