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Finding the Fourth Proportional to 5,811.22, 8,011.52 and 3,994.18

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Solution

The fourth proportional to 5,811.22, 8,011.52 and 3,994.18 is: 5,506.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.22 : 8,011.52 = 3,994.18 : x
  2. Step 2: Convert to fraction form
    5,811.22/8,011.52 = 3,994.18/x
  3. Step 3: Cross multiply
    5,811.22x = 8,011.52 × 3,994.18
  4. Step 4: Simplify right side
    5,811.22x = 31,999,452.95
  5. Step 5: Solve for x
    x = 31,999,452.95/5,811.22
  6. Step 6: Final answer
    x = 5,506.49

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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.