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Finding the Fourth Proportional to 7,992.65, 11,990.72 and 2,446.40

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Solution

The fourth proportional to 7,992.65, 11,990.72 and 2,446.40 is: 3,670.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.65 : 11,990.72 = 2,446.40 : x
  2. Step 2: Convert to fraction form
    7,992.65/11,990.72 = 2,446.40/x
  3. Step 3: Cross multiply
    7,992.65x = 11,990.72 × 2,446.40
  4. Step 4: Simplify right side
    7,992.65x = 29,334,130.06
  5. Step 5: Solve for x
    x = 29,334,130.06/7,992.65
  6. Step 6: Final answer
    x = 3,670.14

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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.