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Finding the Fourth Proportional to 7,856.52, 11,784.76 and 2,662.26

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Solution

The fourth proportional to 7,856.52, 11,784.76 and 2,662.26 is: 3,993.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.52 : 11,784.76 = 2,662.26 : x
  2. Step 2: Convert to fraction form
    7,856.52/11,784.76 = 2,662.26/x
  3. Step 3: Cross multiply
    7,856.52x = 11,784.76 × 2,662.26
  4. Step 4: Simplify right side
    7,856.52x = 31,374,095.16
  5. Step 5: Solve for x
    x = 31,374,095.16/7,856.52
  6. Step 6: Final answer
    x = 3,993.38

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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.