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Finding the Fourth Proportional to 5,626.80, 7,764.93 and 3,108.96

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Solution

The fourth proportional to 5,626.80, 7,764.93 and 3,108.96 is: 4,290.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,626.80 : 7,764.93 = 3,108.96 : x
  2. Step 2: Convert to fraction form
    5,626.80/7,764.93 = 3,108.96/x
  3. Step 3: Cross multiply
    5,626.80x = 7,764.93 × 3,108.96
  4. Step 4: Simplify right side
    5,626.80x = 24,140,856.77
  5. Step 5: Solve for x
    x = 24,140,856.77/5,626.80
  6. Step 6: Final answer
    x = 4,290.33

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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.