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Finding the Fourth Proportional to 7,776.76, 11,664.84 and 2,230.09

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Solution

The fourth proportional to 7,776.76, 11,664.84 and 2,230.09 is: 3,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776.76 : 11,664.84 = 2,230.09 : x
  2. Step 2: Convert to fraction form
    7,776.76/11,664.84 = 2,230.09/x
  3. Step 3: Cross multiply
    7,776.76x = 11,664.84 × 2,230.09
  4. Step 4: Simplify right side
    7,776.76x = 26,013,643.04
  5. Step 5: Solve for x
    x = 26,013,643.04/7,776.76
  6. Step 6: Final answer
    x = 3,345.05

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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.