Home / 7,717.68-11,577.74-2,787.62

Finding the Fourth Proportional to 7,717.68, 11,577.74 and 2,787.62

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Solution

The fourth proportional to 7,717.68, 11,577.74 and 2,787.62 is: 4,181.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.68 : 11,577.74 = 2,787.62 : x
  2. Step 2: Convert to fraction form
    7,717.68/11,577.74 = 2,787.62/x
  3. Step 3: Cross multiply
    7,717.68x = 11,577.74 × 2,787.62
  4. Step 4: Simplify right side
    7,717.68x = 32,274,267.75
  5. Step 5: Solve for x
    x = 32,274,267.75/7,717.68
  6. Step 6: Final answer
    x = 4,181.86

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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.