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Finding the Fourth Proportional to 7,952.59, 11,928.93 and 2,405.92

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Solution

The fourth proportional to 7,952.59, 11,928.93 and 2,405.92 is: 3,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,952.59 : 11,928.93 = 2,405.92 : x
  2. Step 2: Convert to fraction form
    7,952.59/11,928.93 = 2,405.92/x
  3. Step 3: Cross multiply
    7,952.59x = 11,928.93 × 2,405.92
  4. Step 4: Simplify right side
    7,952.59x = 28,700,051.27
  5. Step 5: Solve for x
    x = 28,700,051.27/7,952.59
  6. Step 6: Final answer
    x = 3,608.89

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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.