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Finding the Fourth Proportional to 7,799.68, 11,699.36 and 1,956.32

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Solution

The fourth proportional to 7,799.68, 11,699.36 and 1,956.32 is: 2,934.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.68 : 11,699.36 = 1,956.32 : x
  2. Step 2: Convert to fraction form
    7,799.68/11,699.36 = 1,956.32/x
  3. Step 3: Cross multiply
    7,799.68x = 11,699.36 × 1,956.32
  4. Step 4: Simplify right side
    7,799.68x = 22,887,691.96
  5. Step 5: Solve for x
    x = 22,887,691.96/7,799.68
  6. Step 6: Final answer
    x = 2,934.44

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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.