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Finding the Fourth Proportional to 5,786.60, 7,990.08 and 5,344.32

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Solution

The fourth proportional to 5,786.60, 7,990.08 and 5,344.32 is: 7,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.60 : 7,990.08 = 5,344.32 : x
  2. Step 2: Convert to fraction form
    5,786.60/7,990.08 = 5,344.32/x
  3. Step 3: Cross multiply
    5,786.60x = 7,990.08 × 5,344.32
  4. Step 4: Simplify right side
    5,786.60x = 42,701,544.35
  5. Step 5: Solve for x
    x = 42,701,544.35/5,786.60
  6. Step 6: Final answer
    x = 7,379.38

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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.