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Finding the Fourth Proportional to 5,403.93, 7,459.94 and 3,811.88

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Solution

The fourth proportional to 5,403.93, 7,459.94 and 3,811.88 is: 5,262.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.93 : 7,459.94 = 3,811.88 : x
  2. Step 2: Convert to fraction form
    5,403.93/7,459.94 = 3,811.88/x
  3. Step 3: Cross multiply
    5,403.93x = 7,459.94 × 3,811.88
  4. Step 4: Simplify right side
    5,403.93x = 28,436,339.73
  5. Step 5: Solve for x
    x = 28,436,339.73/5,403.93
  6. Step 6: Final answer
    x = 5,262.16

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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.